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Affiliation Department |
Department of Electrical and Mechanical Engineering
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Professor |
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Contact information |
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External Link |
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ISHINO Yojiro
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Degree
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Master (Engineering) ( Nagoya Institute of Technology )
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Doctor (Engineering) ( Nagoya Institute of Technology )
Research Areas
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Thermal engineering
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering
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Nanotechnology/Materials / Energy chemistry
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Environmental Science/Agriculture Science / Environmental load reduction and remediation
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Measurement engineering
From School
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Nagoya Institute of Technology Faculty of Engineering Graduated
- 1987.03
Country：Japan
From Graduate School
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Nagoya Institute of Technology Graduate School, Division of Engineering Doctor's Course Completed
- 1992.03
Country：Japan
External Career
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Leeds university Dept. of Mechanical Engineering Researcher
1993.12 - 1994.11
Country：United Kingdom
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株式会社 石野 役員
2005.01
Country：Japan
Professional Memberships
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日本機械学会
1986.12
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Combustion Society of Japan
1990.04
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自動車技術会
1990.04
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The Heat Transfer Society of Japan
1989.01
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The Robotics Society of Japan
2003.01
Research Career
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環境配慮した通常空気アンモニア専焼ガスバーナの開発
Cooperative Research
Project Year： 2022
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液体ロケットエンジンの設計・製作
(not selected)
Project Year： 2013.07 - 2023
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Study onImprovement of Pulse Combustors and regenerative ceramic burners
(not selected)
Project Year：
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Two Dimensional Measurement of Combustion Field
(not selected)
Project Year：
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高効率厨房用燃焼機器の開発
(not selected)
Project Year：
Papers
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Flow features of underexpanded microjets emerging from a round convergent nozzle Reviewed
Tashiro, T., Fukunaga, R., Utsunomiya, D., Nakao, S., Miyazato, Y., Ishino, Y.
Experiments in Fluids 64(3) 2023年 64 ( 3 ) 2023
Language：English Publishing type：Research paper (scientific journal)
Density measurements of underexpanded microjets that emerge from a round convergent nozzle with an inner diameter of 1 mm at the exit are taken using rainbow schlieren deflectometry to nonintrusively capture an extensive region from the nozzle exit to a downstream location of twenty times the nozzle exit diameter. Flow visualizations of the microjets are carried out at nozzle pressure ratios (NPRs) of 3.0, 4.0, 5.0, 6.0, and 7.0 and corresponding fully expanded jet Mach numbers (M-j) of 1.36, 1.56, 1.71, 1.83, and 1.93, where the NPR can be defined as the ratio of the stagnation pressure upstream of the nozzle to the back pressure. The three-dimensional density fields of the microjets are reconstructed at a spatial resolution of approximately 4 mu m by the Abel inversion technique based upon the assumption of axisymmetric density fields. The flow topology of the near-field shock structure for each NPR is demonstrated with an elevated view of the density field, including the jet central axis. The location and flow Mach number of the first local minimum in the density profile along the jet central axis are experimentally provided for the first time as a function of the NPR to propose an empirical relation. An approximate expression for the flow Mach number on the jet central axis from the nozzle exit to the location where the isentropic process is established is also derived against the streamwise distance. In addition, the supersonic length of a shock-containing microjet, which is defined as the distance along the jet central axis from the nozzle exit to the location farthest downstream at which there exists a local flow Mach number of unity, is acquired from the density profile along the jet centerline and compared quantitatively with the experimental data from previous Pitot probe surveys as well as previous empirical relations. Furthermore, the microjet density fields from rainbow schlieren deflectometry are mutually compared with those from previous Mach-Zehnder interferometry under the same nozzle to investigate the effects of nonintrusive techniques on the density profiles along three representative locations: the jet centerline, intermediate line, and lipline.
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Microscopic Image Diagnostics with Visible Emission Light for Self-burning Surface Temperature Distribution of CFRP (Carbon Fiber Reinforced Plastic) in Oxygen Reviewed International journal
Yojiro Ishino. Rion Ito
Proceedings of the 13th Pacific Symposium on Flow Visualization and Image Processing 1 - 5 2022.08
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
Carbon Fiber Reinforced Plastic(CFRP) has been widely used in variety industries because of its high strength-density ratio. Therefore disposal method of waste CFRP should be considered in advance now. We have been proposed a combustion incineration of carbon fiber(CF) residue after recycle use. However, carbon fiber residue is almost impossible to be burned out by even high temperature burnt gas because of extremely high melting point of carbon fiber and a low oxygen concentration in burnt gases[1].
In this study, self-sustained combustion of carbon fiber in oxygen has been reported. In order to obtain information of the self-sustaining mechanism of the combustion, in this paper, a convenient optical technique to acquire the 2D distribution of high surface temperature of glowing solid material was conducted.
In this technique, magnified thermographic view of the high temperature specimen was provided by comparison between RGB brightness information of conventional photograph of the visible light emission of the surface and previously-calculated values from Planck's law and the spectral sensitivity of the camera system.
In this paper, first, accuracy of the method was verified by comparison between the 2D temperature distribution result of a glowing fine (0.5 mm dia.) graphite rod in burnt gas of a propane-air premixed laminar flame and its estimated temperature distribution measured by PR-type thermocouple and compensated by Kaskan's method. Next magnified instantaneous 2D temperature diagnostics of self-burning carbon fiber bundle in oxygen was made. The 2D surface temperature distribution result gives very high temperature over 2900 K on carbon fiber surface in in-oxygen combustion incineration. -
Multi-Schlieren 3D-CT Measurements of Instantaneous Equivalence Ratio Distributions of a Premixed Gas Field Based on Modified Refractive Index Reviewed
NAZARI, Ahmad Zaid, ISHINO, Yojiro, KONDO, Harumi, MOTOHIRO, Takanori, YAMADA, Ryoya and ITO, Fumiya
Journal of the Combustion Society of Japan ( 1910 ) 1 - 9 2020.11
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：日本燃焼学会
In quantitative measurements and investigations, "equivalence ratio" and "refractive index" are the most significant parameters in combustion flow fields. Experimental and analytical studies were performed to understand the relation between equivalence ratio and refractive index in flow fields. A "universal relationship" between the refractive index of a premixed gas of fuel and air and its equivalence ratio has been established in this study. Through this relationship, we can calculate the equivalence ratio of any premixed gas (except those of light fuels) from its refractive index using a unique coefficient. The uniqueness of the relation coefficient enables us to obtain the equivalence ratio of even a multi-fuel premixed gas from its refractive index. In this study, the novel relationship is applied to a non-scanning 3D-CT (computerized tomography) technique using a multi(20)-directional quantitative schlieren optical system with a flashlight source. Instantaneous equivalence ratio distributions of a dual-fuel premixed gas flow with two jets of ethanol/air and propane/air mixtures are measured by CT-reconstruction. Good agreement was observed between the CT-reconstructed data and the proposed comprehensive relation.
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Multi-Schlieren CT Measurements of Supersonic Microjets from Circular and Square Micro Nozzles Reviewed International journal
Ahmad Zaid Nazari, Yojiro Ishino, Yuta Ishiko, Fumiya Ito, Harumi Kondo, Ryoya Yamada, Takanori Motohiro, Yoshiaki Miyazato, Shinichiro Nakao
Journal of Flow Control, Measurement & Visualization 8 77 - 101 2020.05
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Scientific research publishing
Instantaneous three-dimensional (3D) density distributions of a shock-cell structure of perfectly and imperfectly expanded supersonic microjets escaping into an ambient space are measured. For the 3D observation of supersonic microjets, non-scanning 3D computerized tomography (CT) technique using a 20-directional quantitative schlieren optical system with flashlight source is employed for simultaneous schlieren photography. The 3D density distributions data of the microjets are obtained by 3D-CT reconstruction of the projection’s images using maximum likelihood-expectation maximization. Axisymmetric convergent-divergent (Laval) circular and square micro nozzles with operating nozzle pressure ratio 5.0, 4.5, 4.0, 3.67, and 3.5 have been studied. This study examines perfectly expanded, overexpanded, and underexpanded supersonic microjets issued from micro nozzles with fully expanded jet Mach numbers Mj ranging from 1.47 - 1.71, where the design Mach number is Md = 1.5. A complex phenomenon for free square microjets called axis switching is clearly observed with two types “upright” and "diagonal" of “cross-shaped”. The initial axis-switching is 45˚ within the first shock-cell range. In addition, from the symmetry and diagonal views of square microjets for the first shock-cells, two different patterns of shock waves are viewed. The shock-cell spacing and supersonic core length for all nozzle pressure ratios are investigated and reported.
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Quantitative Schlieren Image-Noise Reduction Using Inverse Process and Multi-Path Integration Reviewed International journal
Ahmad Zaid Nazari, Yojiro Ishino, Fumiya Ito, Harumi Kondo, Ryoya Yamada, Takanori Motohiro, Yu Saiki, Yoshiaki Miyazato, Shinichiro Nakao
Journal of Flow Control, Measurement & Visualization 8 ( 2 ) 1 - 25 2020.04
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Scientific Research Publishing
This report deals with introducing two new techniques based on a novel concept of complex brightness gradient in quantitative schlieren images, "inverse process" and "multi-path integration" for image-noise reduction. Noise in schlieren images affects the projections (density thickness) images of CT (computerized tomography). One spot noise in the schlieren image appears in a line shape in the density thickness image. Noise effect like an infectious disease spreads from a noisy pixel to the next pixel in the direction of single-path integration. On the one hand, the noise in the schlieren image reduces the quality of the image and quantitative analysis and is undesirable, on the other it is unavoidable. So, the importance of proper noise reduc-tion techniques seems essential and tangible. In the present report, a novel technique "multi-path integration" is proposed for noise reduction in projections images of CT. Multi-path integration is required schlieren brightness gradient in two orthogonal directions. The 20-directional quantitative schlieren optical system presents only images of schlieren brightness in the horizontal gradient and another 20-directional optical system seems necessary to obtain vertical schlieren brightness gradient, simultaneously. Using the "inverse process" a new technique enables us to obtain vertical schlieren brightness gradient from horizontal experimental data without the necessity of a new optical system and can be used for obtaining any optional direc-tions of schlieren brightness gradient. Recently, we presented the "inverse process" technique but in a different way than this time. In previous work, the phan-tom(virtual) data of schlieren images are obtained by the "inverse process" and used to evaluate noise reduction technique while in the new "inverse process" technique actual experimental data is used for reproducing other directions of schlieren brightness gradient.
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Three-dimensional reconstruction of a microjet with a Mach disk by Mach-Zehnder interferometers Reviewed International journal
S. Sugawara, S. Nakao, Y. Miyazato, Y. Ishino and K. Miki
J. Fluid Mech. 893 A25-1 - A25-26 2020.04
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.1017/jfm.2020.217
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THREE-DIMENTIONAL MEASUREMENT ON THERMAL STRUCTURE OF SIX CLUSTERED METHANE-AIR DIFFUSION MICROFLAMES Reviewed International journal
Yuta Uchida, Harumi Kondo, Zhaojin Diao, Taro Hirasawa, Michael Winter, Yojiro Ishino, Kozo Saito
Proceedings of The Second Pacific Rim Thermal Engineering Conference PRTEC-24221 1 - 5 2019.12
Language：English Publishing type：Research paper (international conference proceedings) Publisher：ASTFE, JSME, KSME
The unique and complicated three-dimensional flame structure of clustered six diffusion methane-air microflames was investigated in the present study. The burner consisted of six micro-nozzles for methane with a diameter of 0.23 mm arranged in a circle surrounding a central nozzle for air with a diameter of 0.7 mm. The burner established six interacting microflames under the conditions of methane total flow rate of 20 cm3 / min and air flow rate of 30 cm3 / min. Schlieren CT method was applied to obtain the three-dimensional distribution of modified refractive index inside and outside the flame structure of the clustered diffusion microflames. The correspondence of flame structure to the distribution of the modified refractive index was confirmed.
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Study on Combustion Incineration of CFRP (SEM Observations of Nano Level Sharpening of Carbon Fiber Residue Tips and Temperature Measurements Based on Heat Radiation Images) International journal
Y. Ishino, M. Tabata,S. Onuma
Proceedings of the International Workshop on Environmental Engineering 2019 (IWEE2019) 1 - 2 2019.06
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings) Publisher：The Japan Society of Mechanical Engineers, Environmental Engineering Division
Carbon fiber, contained in CFRP(carbon fiber rainforced plastic), is almost impossible to be burned out by even high temperature burnt gas because of extremely high melting or sublimation point of carbon fiber and a low oxygen concentration in burnt gases. In this study, first, oxygen nozzle of 10 mm x 30 mm exit size, which equipped fuel (propane) pipe of inner diameter of 0.8 mm for a pilot ignition flame, has been introduced to observe the in-oxygen-combustion behaiviors of test pieces of (i) CFRP slender plate (2 mm wide and 1 mm thickness), (ii)slender plate of CFRP-P (Plastic removed CFRP), "G"FCRs("Graphite" Fine Cylindrical Rod) of diameters of 0.38 mm, 0.55 mm and 0.72 mm.
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CT (COMPUTER TOMOGRAPHY) MEASUREMENT OF 3D DENSITY DISTRIBUTIONS OF FLAME: OBTAINING VERTICAL GRADIENT SCHLIEREN BRIGHTNESS FROM HORIZONTAL GRADIENT FOR IMAGE-NOISE REDUCTION Reviewed International journal
Ahmad Z. Nazari, Yojiro Ishino, Ryoya Yamada, Takanori Motohiro, Fumiya Ito, Harumi Kondo, Yoshiaki Miyazato, Shinichiro Nakao
Proceedings of the 4th Thermal and Fluids Engineering Conference (TFEC) TFEC-2019 ( 27746 ) 1 - 10 2019.04
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings) Publisher：American Society of Thermal and Fluids Engineers
Using a delicate multi-directional quantitative schlieren optical system, the 20-directional observation of high-speed premixed turbulent flame, non-uniform density flow, by employing non-scanning 3D-CT (three-dimensional computer-tomography) technique has been conducted. The 3D density distributions data of target flame by using ML-EM (Maximum Likelihood-Expectation Maximization) an appropriate CT (computer-tomography) algorithm are successfully reconstructed. In the previous report, a novel technique "multi-path integration" is proposed for noise reduction in projections (density thickness) images of CT (computer-tomography). Multi-path integration is required schlieren brightness gradient in both horizontal (x-directional) and vertical (z-directional) directions, or in other words, in two orthogonal directions (e.g. horizontal and vertical or two perpendicular diagonal directions). The 20-directional quantitative schlieren optical system presents only images of schlieren brightness in the horizontal gradient (x-directional) and another 20-directional optical system seems necessary to obtain vertical (z-directional) schlieren brightness gradient, simultaneously. In the present investigation, the report deals with introducing a new technique for obtaining vertical schlieren brightness gradient from horizontal experimental data without the necessity of a new optical system. This new approach is a simple and inexpensive solution. First, for a deep understanding of complex schlieren brightness, a numerical simulation is performed. Next, the initial density thickness (Dt) images are obtained from images of schlieren brightness in the horizontal gradient (x-directional). Finally, using inverse process from density thickness (Dt) images, the vertical (z-directional) and diagonal schlieren brightness gradient data of target flame successfully obtained. The mentioned technique can be used for obtaining any optional directions of schlieren brightness gradient.
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Characterization of Six Clustered Methane-Air Diffusion Microflames through Spectroscopic and Tomographic Analysis of CH* and C2* Chemiluminescence International coauthorship
Zhaojin Diao, Michael Winter, Taro Hirasawa, Yuichi Kato, Yojiro Ishino, and Kozo Saito
Experimental Thermal and Fluid Science 102 20 - 27 2018.12
Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevior
The current study presents an emission spectroscopic investigation of clustered microflames established on a burner consisting of six micro fuel nozzles surrounding a center air nozzle which has been designed for flame synthesis and characterization of microflames. We conducted the spectrally resolved measurement of chemiluminescence of C2* and CH* and compared these results to a tomographic method applied to filtered emission measurements of CH* emission which can yield spatially resolved three dimensional mapping of the flame front. The analysis of the spatial distribution of the integrated band emission of C2* and the CH* showed that the emission of both species is generated in the same locations in the flame which are the thin flame sheets shown in the tomography results of CH*. The ratio of the C2* and the CH* emission from the emission spectroscopy measurements was used to determine a local corresponding equivalence ratio through empirically derived correlations for premixed flames reported in literature. The resulting equivalence ratio equals one when the flame zone established at the boundary between fuel and air, indicating that the diffusion dominated flame zones are established. Under certain nozzle pitch and flow rate conditions, the equivalence ratio above the center air nozzle inside the merged flame became significantly greater than one, which indicates a fuel rich premixed type flame zone being established.
To determine distributions of rotational and vibrational temperatures throughout the entire flame, we used the spectrally resolved emission from C2* and CH*. The temperature associated with vibrational excitation was different for both species but remained constant throughout the entire flame region and was found no representation of the flame temperature but an artifact of the combustion reactions producing the chemiluminescence. The rotational temperature of di-atomic molecules, however, equilibrates rather quickly with the translational temperature and can accurately represent the gas-dynamic temperature of the flame. The temperature distributions found from the two species agreed qualitatively, the CH* temperature was consistently higher than the C2* temperature by about 200 K. Spatial resolution was assigned to the results from the spectroscopic measurements through a comparison with the tomographically analyzed images of the CH* chemiluminescence.
Books and Other Publications
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あなたの実用燃焼炉設計および制御
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テクノシステム 2001.04
Language：jpn
Misc
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Instantaneous 3D-CT(Computer Tomography) measurements with instantaneous multi-directional photography for unsteady flame/flow phenomena; and 3D printing of 3D reconstructed distributions Invited International journal
Yojiro Ishino
1 - 13 2016.11
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other)
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最新の可視化技術「非定常火炎のスキャンレスCT（コンピューター・トモグラフィー）多次元計測の実際」
石野洋二郎，齋木悠
41 ( 5 ) 394 - 400 2013.09
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本ガスタービン協会
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3D Visualization of unsteady flames by the combined technique of multi-directional simultaneous photography and 3D-Computed Tomography
Yojiro ISHINO, Yu SAIKI, Yasufumi TOMIDAI, Yuya OKITA
31 ( 120 ) 9 - 14 2011.01
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings)
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乱流火炎形状のスキャンレス三次元CT計測 --- 40眼カメラによる多方向同時撮影法と三次元CT法による乱流予混合火炎の瞬間輝度分布の三次元計測---
石野洋二郎，大岩紀生
46 ( 137 ) 142 - 152 2004.08
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本燃焼学会
Presentations
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Developments of a Vibration-free I.C. Piston Engine Based on a “Basement and Radial” Configuration Design (Design Theory for the Compact and non-Combustion Operation of 2nd Prototype Engine)
Haruki USHIMARU, Gen TAKASE, Yojiro ISHINO, Yu SAIKI
2024.12
Event date： 2024.12
Language：Japanese Presentation type：Oral presentation (general)
Country：Japan
A novel engine geometry, which is named provisionally as "basement and radial configuration", was proposed and investigated in this paper. The geometry gives a vibration-free and kinematic energy fluctuation-free property to motions of plural parts; i.e. pistons. A single radial arm rotor drives all the moving pistons in this configuration. In this study, a prototype three-cylinder internal combustion engine based on the geometry was designed and manufactured. The specifications of the prototype engine are as follows: the number of cylinders of 3, a piston displacement of 21cc x 3, a cylinder bore of 30 mm, a piston stroke of 30 mm, a compression ratio of 4.9, propane as fuel, a valve system of a rotary valve. A trial operation of the prototype engine resulted in the achievement of firing operation (8.1W output at 311 rpm) without any support of electrical motor and so on. This paper gives the pressure variations in the three combustion chambers on the firing condition. The theory and design for a compact 2nd prototype engine were reported. Especially the detailed design of the mechanism of crankshaft rotation, which consists of main-crankshaft, sub-crankshafts, split needle bearings, and a radial arm rotor, has also been provided.
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Development of a 100% Ammonia firing Package Burner of 20kW Class
Yojiro ISHINO, Kenji NISHIZAWA, Yuki MATSUI, Kakeya WATANABE, Yu SAIKI
2024.11
Event date： 2024.11
Language：Japanese Presentation type：Oral presentation (general)
Country：Japan
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Developments of a Vibration-free I.C. Piston Engine Based on a “Basement and Radial” Configuration Design (Firing Engine Operation of the 1st Prototype Engine and Design Theory for the Compact 2nd Prototype Engine)
Haruki Ushimaru, Momoka Komeda, Gen Takase, Ryosuke Hibi, Yojiro Ishino
2024.05
Event date： 2024.05
Language：Japanese Presentation type：Oral presentation (general)
Country：Japan
A novel engine geometry, which named provisionally as "basement and radial configuration", was proposed and investigated in this paper. The geometry gives a vibration-free and kinematic energy fluctuation-free property to motions of plural parts; i.e. pistons. In this configuration, all the moving pistons are driven by a single radial-arm-rotor. In this study, a prototype three-cylinder internal combustion engine based on the geometry was designed and manufactured. The specifications of the prototype engine are as follows: a number of cylinders of 3, a piston displacement of 21cc x 3, a cylinder bore of 30 mm, a piston stroke of 30 mm, a compression ratio of 4.9, propane as fuel, a valve system of a rotary valve. A trial operation of the prototype engine resulted in achievement of firing operation (8.1W output at 311 rpm) without any support of electrical motor and so on. In this paper the pressure variations in the three combustion chambers on the firing condition was provided. The theory and design for a compact 2nd prototype engine was also reported.
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Developments of a Vibration-free I.C. Piston Engine Based on a “Basement and Radial” Configuration Design (Firing Engine Operation of the 1st Prototype Engine and Design Theory for the Compact 2nd Prototype Engine)
2024.05
Event date： 2024.05
Language：Japanese Presentation type：Poster presentation
Country：Japan
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Development of Tele-Existence Thermal Haptics Robot Arm System for Experiencing Remote Interactive Thermal(hot/cold) Environment（Prototype Design of a Haptic Exoskeleton Wearable Arm Device and Reproducibility of Remote Temperature Environment Provided by Wearable Device）
Kaito Kawamura, Kumi Yamane, Takashi Ichikawa, Yojiro Ishino
2023.10
Event date： 2023.10
Language：Japanese Presentation type：Oral presentation (general)
Country：Japan
In this study, the development of the tele-existence robot arm in which human beings can experience not only the haptic environment but also the thermal (hot/cold) environment was focused on. In this report, the temperature transmission system was actually developed, and the trial operations were conducted. A comparison between reproductivities of two types of thermal control units of wearable device to generate a cold environment was made. For the development of a proper wearable device, it is important to design the configuration of joints of the wearable device so as to allow every motions and postures of an operator without any interruption. A prototype design of a wearable arm device, originated from a collar bone joint, with a novel (111) isometric shoulder configuration, was also introduced.
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新型・無振動内燃ピストンエンジンの実動作の確認（ベース・ラジアル機構を利用した設計）
米田百花，日比瞭介，牛丸春貴，石野洋二郎
自動車技術会2023年秋季大会 第６回学生ポスターセッション 2023.10 自動車技術会
Event date： 2023.10
Language：Japanese
Venue：名古屋 Country：Japan
無振動，一定運動エネルギーの物体運動を与える機構である「ベース・ラジアル機構」を見出した．この機構に基づけば，多様なエンジン・流体機械の設計が可能となるが，本研究では，低振動な内燃エンジンの設計・試作を行いった．発表では，設計理論の説明と，本試作エンジンの燃料による自立運転の結果の報告を行う．
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Development of Tele-Existence Haptics Robot Arm System for Force and Thermal (hot/cold) Environments(Prototype Design of a Novel Shoulder Configuration Haptic Exoskelton Wearable Arm Device Originated from Collar bone Joint)
Yojiro ISHINO,Tetsuji TSUKADA,Kumi YAMANE,Kaito KAWAMURA
2023.06
Event date： 2023.06 - 2023.07
Country：Japan
Robot systems capable of experiencing remote environments are urgently required for future lack of manpower and aging society. In this study, the development of the tele-existence robot arm system in which human beings can experience not only the haptic environment but also the thermal (hot/cold) environment was focused on. In this system, operator's shoulder and arm should be restricted by an exoskelton wearable device to get motion and posture information of a remote robot arm. For development of a proper wearable device, it is important to design the configuration of joints of the wearable device so as to allow every motions and postures of an operator without any interruption. Especially, a shoulder joint of human is so functional that the reproduction by a simple mechanical structure has been almost difficult. In this report, prototype design of a wearable arm device, originated from collar bone joint, with a novel (111) isometric shoulder configuration, was introduced.
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Development of Tele-Existence Haptics Robot Arm System for Force and Thermal (hot/cold) Environments (Improvement in Reproducibility of Remote Environments Provided by Wearable Haptic Device)
Kumi YAMANE, Tetsuji TSUKADA, Kaito KAWAMURA, Yojiro ISHINO
2023.06
Event date： 2023.06 - 2023.07
Language：Japanese Presentation type：Poster presentation
Country：Japan
Robot systems capable of experiencing remote environments are urgently required for future lack of manpower and aging society. In this study, the development of the tele-existence robot arm in which human beings can experience not only the haptic environment but also the thermal (hot/cold) environment was focused on. In this report, the temperature transmission system was actually developed, and the trial operations were conducted. In the operations, a remote finger-tip-like temperature measuring unit touching a moderately (50degC)-heated test block (aluminum) transmitted a PWM signal of a temperature variation to an on-site wearable unit. Consequently, the reproduction of the remote temperature sensing data was succeeded by controlled heating based on the transmitted information in the wearable unit. In this paper, first, the reproducibility was indicated by the result of the positive(hot) temperature variation of the temperature measurement unit of the on-site finger probe in the wearable unit. Second, comparison between reproductivities of two types of thermal controll units of wearable device to generate a cold environment was made.
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Multi-Directional Schlieren 3D-CT(Computer Tomography) measurement of Ammonia-Air Premixed Flames on an Open-type Swirl Burener
2022.11
Event date： 2022.11
Language：Japanese Presentation type：Oral presentation (general)
Country：Japan
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A Vibration-free I.C. Piston Engine Based on a "Basement and Radial" Configuration Design (Construction of the Prototype Engine and Investigation of the Firing Engine Operation)
2022.11
Event date： 2022.11
Language：Japanese Presentation type：Oral presentation (general)
Country：Japan
Industrial Property Rights
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アンモニア専焼バーナー
石野洋二郎
Applicant：国立大学法人名古屋工業大学，成田製陶所，加藤鉄工バーナー
Application no：特願2024-000000 Date applied：2024.12
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アンモニア専焼パッケージバーナー
石野洋二郎
Applicant：国立大学法人名古屋工業大学，成田製陶所，加藤鉄工バーナー
Application no：特願2024-000001 Date applied：2024.12
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角度計測器
石野洋二郎
Applicant：国立大学法人名古屋工業大学または石野洋二郎
Application no：特願2023-000000 Date applied：2023.12
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無振動エンジン
石野洋二郎
Applicant：国立大学法人名古屋工業大学
Application no：特願2023-000000 Date applied：2023.12
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ウェアラブル装置、アシストスーツならびに人型ロボットの関節構造
石野洋二郎
Applicant：国立大学法人名古屋工業大学
Application no：特願2023-104082 Date applied：2023.06
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温冷覚呈示ユニット本体、温冷覚呈示ユニット、及びそれらを備えるウェ アラブル装置
石野洋二郎
Applicant：国立大学法人名古屋工業大学
Application no：特願2023-101705 Date applied：2023.06
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バーナ
石野 洋二郎，安田 益雄，江口 文康，高田 有則，加藤 雅彦
Applicant：国立大学法人名古屋工業大学，株式会社成田製陶所，株式会社ナリタテクノ，株式会社加藤鉄工バーナー製作所
Application no：特願2022-169945 Date applied：2022.10
Patent/Registration no：特許第7319621号(P6150296) Date registered：2023.07 Date issued：2023.07
Rights holder：国立大学法人名古屋工業大学，株式会社成田製陶所，株式会社ナリタテクノ，株式会社加藤鉄工バーナー製作所 Country of applicant：Domestic
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無振動機構レイアウトとその応用機器
石野 洋二郎
Applicant：国立大学法人名古屋工業大学
Application no：特願2022-101280 Date applied：2022.06
Rights holder：名古屋工業大学 Country of applicant：Domestic
一定距離だけ離れた２点を軸として同角度で回転する２つの直線ユニットによって駆動される軌道ユニットの数が３以上の場合に、合成重心の位置が移動せず、総合運動エネルギーの変化もない特性を有するベース・ラジアル機構に基づき、さらに、２つの直線部分と軌道ユニットの間で変動体積の密閉空間を形成することで、作動流体の漏れが無く高効率で、無振動無揺動のエンジン、流体機械およびその他の機械を提供する。
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トルク制御が可能なサーボモーター装置システム
石野 洋二郎
Application no：特願2019-103898 Date applied：2019.06
Country of applicant：Domestic Country of acquisition：Domestic
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燃料ガスの当量比計測装置，ガス漏れ警報器，および三次元シュリーレンCT計測システム
石野洋二郎
Applicant：国立大学法人 名古屋工業大学
Application no：2018-120960 Date applied：2018.06
Announcement no：特開2020-3261 Date announced：2020.01
Country of applicant：Domestic Country of acquisition：Domestic
Works
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Research and Development of a Novel Vibration-free I.C. Piston Engine Based on a “Basement and Radial” Configuration Design
Yojiro ISHINO, Takuma OIKAWA, Momoka KOMEDA
2022.05
A novel geometry, which named provisionally as "basement and radial configuration", was proposed and investigated in this paper. The geometry gives a vibration-free and kinematic energy fluctuation-free property to motions of plural parts; i.e. pistons. In this study, a prototype three-cylinder internal combustion engine based on the geometry was designed and manufactured. A trial operation of the prototype engine resulted in achievement of firing operation without any support of electrical motor and so on. In this paper the pressure variations in the three combustion chambers on the firing condition was provided.
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野球投球動作も可能な，肩関節のアイソメ配置による体幹から上腕までのウエアラブル装置実機
石野洋二郎
2023.06
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２０ｋＷ級アンモニア専焼パッケージバーナー
石野洋二郎，成田製陶所，加藤鉄工バーナー
2024.10
工業用バーナー等の工業展示会にて，石野研究室で設計製作した，環境対応型新燃料であるアンモニアの燃焼が可能な「アンモニア専焼パッケージバーナー」を，２社の展示ブースにて展示．
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ジグザグ円筒面ローラーを用いた人間搭乗型巨大二足歩行ロボット
石野洋二郎
2011.09
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i-Walker（人間搭乗型巨大二足歩行ロボット）
石野 洋二郎，齋木悠，岩澤宏太
2010.11
名工大名市大合同テクノフェアにてi-Walker（人間搭乗型二足歩行ロボット）を展示．試乗会では老若男女多数の参加者が搭乗体験．この様子はテレビ愛知等で放映．当該機は日刊工業新聞でも特集取材された（２０１１年２月７日）．
Awards
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自動車技術会 2024年春季大会 優秀ポスター発表賞
2024.07 公益社団法人 自動車技術会 ベース・ラジアル機構に基づく無振動ピストンエンジン（小型改良型試作エンジンの設計と製作）
高瀬元，牛丸晴貴，米田百花，及川拓真，石野洋二郎
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
本研究では，無振動，一定運動エネルギーの物体運動を与える機構である「ベース・ラジアル機構（Fig.1）」を見出し，エンジンならびにその他の機器に対する適用について検討を行ってきた．本報では，この幾何学的構成の特性を説明し，さらに，これを利用した新型の３気筒内燃エンジン（第１試作エンジン．Fig.2）の設計・試作を行い，試運転を行った．その結果，モーター等の補助を必要としない，自立燃焼運転（firing operation）を達成し，8.1 Wの外部軸出力を得た．自立燃焼運転時の３気筒の燃焼室圧力変動の測定結果（Fig.3）もあわせて示した．
また，第１試作エンジンの欠点でもあったコンパクト性を改善する目的で考案した第２試作エンジンについて，その設計手法と試作状況を報告する．第２試作エンジンの設計諸元は以下のとおりである．気筒数：3，ボア径：60 mm，ストローク：26 mm，総排気量：73.5 cc × 3＝220 cc．
Fig.4に，製作中の第２試作エンジンの部品群の一部の写真を示す．なお，コンパクト性については，Fig.5に示すように，排気量200 ccの市販エンジン（主要部を青色で示す）と比較し，第２試作エンジン（排気量220 cc．赤色で示す）は約４分の１の体積に収まっていることがわかる． -
自動車技術会 2023年秋季大会 優秀ポスター発表賞
2024.01 公益社団法人 自動車技術会 新型・無振動内燃ピストンエンジンの実動作の確認（ベース・ラジアル機構を利用した設計）
米田百花，日比瞭介，牛丸春貴，石野洋二郎
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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日本機械学会若手優秀講演フェロー賞（直接受賞は発表学生）
2023.03 日本機械学会 遠隔地における接触熱環境を体験する テレ・ハプティクス・ロボットアーム・システムの構築 （ウェアラブル装置における熱環境再現性の検討）
山根久美，塚田哲司，石野洋二郎
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
本稿では，薄型熱電対の採用によるウェアラブル装置の熱環境再現性向上について記載する．温度センサとしてサーミスタ（厚さ450 μm）を用いる従来機（１）では，接触時の温度計測結果に，時間遅れが生じていた．そこで温度感知部の厚みをサーミスタ以下に低減でき，接触面の温度計測に優れた熱電対を新たに温度センサとして用いることでシステムの応答性向上を目指した．本実験では，ヒトの指を模した温度計測ユニットに薄型熱電対を搭載し，計測対象との接触面を可視化することでセンサの接触状態を把握する．つぎに，薄型熱電対を搭載した温度計測ユニットが50℃の物体（アルミニウム（２），および，透明アクリル樹脂（PMMA））に触れたときの接触面温度変動（ロボット指表面温度）を計測し，その情報を有線にて伝送し，温度計測ユニットと同様の構造をした”Finger probe”を装填したウェアラブル装置のヒーターを駆動し，接触面温度まで加熱制御を行う（２）ことで，熱触覚の再現性を確認する．
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FELLOW of The Japan Society of Mechanical Engineering(JSME)
2023.02 The Japan Society of Mechanical Engineering(JSME) No.220004
Country：Japan
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学会賞（技術賞（カテゴリー：Ⅰ））
2019.07 一般社団法人 可視化情報学会 CT ( COMPUTER TOMOGRAPHY ) MEASUREMENT OF 3D DENSITY DISTRIBUTIONS OF HIGH-SPEED PREMIXED TURBULENT FLAMES ( MULTI-PATH INTEGRATION IMAGE-NOISE REDUCTION TECHNIQUE BASED ON NOVEL CONCEPT OF COMPLEX BRIGHTNESS GRADIENT IN QUANTITATIVE SCHLIEREN IMAGES )
Ahmad Z. Nazari, Yojiro Ishino, Ryoya Yamada, Takanori Motohiro, Fumiya Ito, Harumi Kondo, Yoshiaki Miyazato, Shinichiro Nakao
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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Best Research Paper Award（最優秀研究論文賞）
2019.04 American Society of Thermal and Fluids Engineers CT (COMPUTER TOMOGRAPHY) MEASUREMENT OF 3D DENSITY DISTRIBUTIONS OF FLAME: OBTAINING VERTICAL GRADIENT SCHLIEREN BRIGHTNESS FROM HORIZONTAL GRADIENT FOR IMAGE-NOISE REDUCTION
Ahmad Zaid Nazari, Yojiro Ishino, Ryoya Yamada, Takanori Motohiro, Fumiya Ito, Harumi Kondo, Yoshiaki Miyazato, Shinichiro Nakao
Award type：Award from international society, conference, symposium, etc. Country：United States
Using a delicate multi-directional quantitative schlieren optical system, the 20-directional observation of high-speed premixed turbulent flame, non-uniform density flow, by employing non-scanning 3D-CT (three-dimensional computer-tomography) technique has been conducted. The 3D density distributions data of target flame by using ML-EM (Maximum Likelihood-Expectation Maximization) an appropriate CT (computer-tomography) algorithm are successfully reconstructed. In the previous report, a novel technique "multi-path integration" is proposed for noise reduction in projections (density thickness) images of CT (computer-tomography). Multi-path integration is required schlieren brightness gradient in both horizontal (x-directional) and vertical (z-directional) directions, or in another word, in two orthogonal directions (e.g. horizontal and vertical or two perpendicular diagonal directions). The 20-directional quantitative schlieren optical system presents only images of schlieren brightness in the horizontal gradient (x-directional) and another 20-directional optical system seems necessary to obtain vertical (z-directional) schlieren brightness gradient, simultaneously. In the present investigation, the report deals with introducing a new technique for obtaining vertical schlieren brightness gradient from horizontal experimental data without the necessity of a new optical system. This new approach is a simple and inexpensive solution. First, for a deep understanding of complex schlieren brightness, a numerical simulation is performed. Next, the initial density thickness (Dt) images are obtained from images of schlieren brightness in the horizontal gradient (x-directional). Finally, using inverse process from density thickness (Dt) images, the vertical (z-directional) and diagonal schlieren brightness gradient data of target flame successfully obtained. The mentioned technique can be used for obtaining any optional directions of schlieren brightness gradient.
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ベストプレゼンテーション賞
2018.11 日本燃焼学会 複数燃料種が混在する予混合気体場の当量比分布の定量シュリーレン瞬間三次元CT計測 - 当量比・屈折率の普遍関係式に基づく当量比計測 -
石野洋二郎，近藤晴海，元廣孝徳，Ahmad Zaid NAZARI，山田凌矢，伊東郁哉
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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日本機械学会優秀講演フェロー賞受賞者
2018.07 日本機械学会 CFRP（炭素繊維強化プラスチック）の焼却処理に関する研究 ー試験片の燃焼特性の観察
田畑まどか，石野洋二郎，當山 良太
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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日本機械学会東海支部フェロー賞
2016.09 日本機械学会東海支部 20方向シュリーレン三次元CT計測による乱流予混合気流中の火花点火火炎の成長過程の観察
永瀬 公博，林 直樹，石河 雄太，Ahmad Zaid Nazari，柿本 和摩，齋木 悠，石野 洋二郎
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
本研究では，これまでの研究を拡張し，予混合火炎に対し多方向から定量シュリーレン撮影を実施し，空間積分処理により密度厚さ分布画像を作成し，三次元CT処理により三次元密度分布を得る計測法を提案する．本報では，定量シュリーレンCT法の計測原理および20組のシュリーレン光学系から構成される20方向マルチ・シュリーレンカメラを用い，乱流予混合気中において火花点火により得られた火炎核の瞬間三次元密度分布の三次元CT再構成を行った結果を報告した．
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可視化情報学会ベストプレゼンテーション賞
2015.10 可視化情報学会 噴出速度の異なる高速乱流バーナー火炎の瞬間三次元密度分布の２０方向シュリーレンCT計測と３Dプリンティング
石河 雄太，林 直樹，Abd Razak Ili Fatimah，齋木 悠，石野 洋二郎
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
多方向定量シュリーレン撮影により，予混合火炎の輝度分布を獲得し，その輝度分布を空間積分することで密度偏差厚さの獲得を行った．そして，獲得された密度偏差厚さをプロジェクション画像として，三次元CT法により再構成することで瞬間三次元密度分布の獲得を行った． 本発表では，２０台のシュリーレン光学系からなる多方向シュリーレン・カメラにより，実用バーナーの高速乱流予混合火炎のシュリーレン撮影を行い，同火炎の瞬間三次元密度分布の三次元CT再構成を行った結果を報告する．本報では，とくに，バーナー噴出速度による火炎形状の変化について調査した．さらに，得られた瞬間三次元分布データを基に，３Dプリンターにより乱流火炎の瞬間形状の三次元モデルを作製した．
Scientific Research Funds Acquisition Results
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フラッシュ・シュリーレン３D－CT法による実用乱流火炎の実像獲得
2016.04 - 2020.03
科学研究費補助金 基盤研究(C)
石野 洋二郎
Authorship：Principal investigator
Past of Cooperative Research
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環境配慮型アンモニアガスバーナの開発
2023.04 - 2024.03
株式会社成田製陶所 Collaboration in College
石野洋二郎
Grant amount：\650000 （ Direct Cost: \500000 、 Indirect Cost：\150000 ）
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ＮＨ３ガスバーナの開発
2023.04 - 2024.03
成田製陶所，加藤鉄工バーナー Collaboration in Japan
石野洋二郎
Grant amount：\650000 （ Direct Cost: \500000 、 Indirect Cost：\150000 ）
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環境配慮型アンモニアガスバーナの開発
2022.04 - 2023.03
名古屋工業大学，成田製陶所 Collaboration in College
石野洋二郎
Grant type：Collaborative (industry/university)
Grant amount：\650000 （ Direct Cost: \500000 、 Indirect Cost：\150000 ）
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ＮＨ３（アンモニア）ガスバーナの開発
2022.04 - 2023.03
名古屋工業大学，成田製陶所，加藤鉄工バーナー Collaboration in Japan
石野洋二郎
Authorship：Principal investigator
Grant amount：\650000 （ Direct Cost: \500000 、 Indirect Cost：\150000 ）
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超小型液体ロケットエンジン開発
2016.04 - 2017.03
加藤精密工業 Collaboration in Japan
石野洋二郎，加藤義春、加藤義春
亜酸化窒素を酸化剤，エタノールを燃料とする超小型液体ロケットの開発を実施すると同時に，それを用いたロケットの打ち上げを計画．本年は，相手先企業でのエンジンシステムの製作，本学側での打ち上げ場所の視察を行った．
Teaching Experience
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燃焼工学（火炎実演，燃焼機器分解実習を含む）
2000 Institution：Nagoya Institute of Technology
Level：Undergraduate (specialized)
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エンジン工学Ⅱ（ガスタービン，ジェットエンジン，含むエンジン見学会）
2000 Institution：Nagoya Institute of Technology
Level：Undergraduate (specialized)
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燃焼工学特論（最先端燃焼CT計測，特殊燃焼技術）英語対応授業
2000 Institution：Nagoya Institute of Technology
Level：Postgraduate
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常微分方程式（含む，実演）
2000 - 2010 Institution：Nagoya Institute of Technology
Level：Undergraduate (liberal arts)
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機械製図
1996 - 2010 Institution：Nagoya Institute of Technology
Level：Undergraduate (specialized)
Committee Memberships
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アメリカ機械学会 K22可視化技術委員会 委員
2015.07
Committee type：Academic society
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日本設計工学会 中部支部 商議員
2015.04
Committee type：Academic society
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日本機械学会 環境工学部門 第3技術委員会 委員
2010.04
Committee type：Academic society
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日本機械学会 動力エネルギー部門 商議員
2010.04
Committee type：Academic society
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日本機械学会 RC研究委員会（熱流体計測）
2006.04
Committee type：Academic society
Media Coverage
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ロボティクス・メカトロニクス講演会2023（日本バーチャルリアリティ学会 Newsletter記事） Promotional material
日本バーチャルリアリティ学会 Newsletter – 2023年7月号 – ( Vol. 28, No. 7 ) https://vrsj.org/ 1. 報告集 ◆ Robomech 2023 小嶋 麻由佳(東京大学) 2023.07
Author：Other
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新型無振動／高効率3気筒内燃エンジンを試作し、燃料による駆動運転に成功 名古屋工業大学 Internet
fabcross for エンジニア fabcross for エンジニア 2022.07
Author：Other
名古屋工業大学大学院工学研究科の石野洋二郎教授らの研究グループは2022年7月7日、新たに考案した無振動かつ無揺動の機構（メカニズム）に基づいた、新型無振動で高効率の3気筒内燃エンジンを設計、製作し、モーター等のアシストを必要としない燃料による駆動運転に成功したと発表した。輸送機械や発電装置に、この内燃エンジンが広く用いられるようになることが期待される。