Papers - BONKOBARA Yasuhiro
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Shoulder Movement-Centered Measurement and Estimation Scheme for Underarm-Throwing Motions Reviewed
Geunho Lee, Yusuke Hayakawa, Takuya Watanabe, Yasuhiro Bonkobara
Sensors MDPI 24 ( 10 ) 2024.5
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.3390/s24102972
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Thinking about the Problems in the Faculty Mechanical Engineering Program from the Experience of Design Training Invited Reviewed
DENG Gang, Yasuhiro BONKOBARA
Journal of JSEE 70 ( 5 ) 5_16 - 5_23 2022.9
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society for Engineering Education
DOI： 10.4307/jsee.70.5_16
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Tomoki ONO, Takahiro KONDOU, Yasuhiro BONKOBARA
Journal of System Design and Dynamics 7 ( 4 ) 580 - 594 2013.12
Language：English Publishing type：Research paper (scientific journal)
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Development of Synchronous Vibration Mechanism for a Tamping Rammer
Yasuhiro BONKOBARA, Takahiro KONDOU
Proceedings of International Joint Symposium on Applied Mechanics and Robotics 125 - 128 2013.7
Language：English Publishing type：Research paper (international conference proceedings)
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The SA/GA Hybrid Optimization Method using a Procedure for Changing Meth Size
Tomoyuki TANIGUCHI, Yasuhiro BONKOBARA, Takahiro KONDOU, Yuuichiro SAKAMOTO
Proceedings of the 15th Asia Pacific Vibration Conference 588 - 593 2013.6
Language：English Publishing type：Research paper (international conference proceedings)
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Validation of a Tamping Rammer using Self-Synchronization Phenomena by Sand Compaction Tests
Yasuhiro BONKOBARA, Takahiro KONDOU, Tomoki ONO
Proceedings of the 15th Asia Pacific Vibration Conference 1389 - 1394 2013.6
Language：English Publishing type：Research paper (international conference proceedings)
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Suppression Effect of Two Flexible Joints for Underwater Sound Propagation
Riku KAMIYA, Yasuhiro BONKOBARA, Rio MATSUO, Takayuki NARAHARA,Takayuki HAMAHATA
52 77 - 80 2023.11
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Development of Borehole Seismometer Using Conical Pendulum to Three-Component Velocity Measurement
Akito YOSHIMATSU, Yasuhiro BONKOBARA, Nobo UEOKA, Takayuki HAMAHATA, Kentaro SAKAI, Atsushi NAKANO, Shinichi TERAZONO
52 65 - 69 2023.11
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Countermeasure against Frictional Vibration in Electric Sander by Dynamic Absorber
Kota KATSUKI, Yasuhiro BONKOBARA, Shunsuke NAKANO, Takayuki HAMAHATA
52 71 - 75 2023.11
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Development of three component velocity sensor for borehole seismometers
Yuki UWAI, Yasuhiro BONKOBARA, Nobo UEOKA, Takayuki HAMAHATA, Shinichi TERAZONO
Memoirs of Faculty of Engineering University of Miyazaki 51 107 - 122 2022.11
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Development of withering machine for fresh tea leaves manufacturing using vibration
Kenjiro HASHIKI, Yasuhiro BONKOBARA, Yuno KATAGI, Kazuhiko TAKASHIMA, Takayuki HAMAHATA
Memoirs of Faculty of Engineering University of Miyazaki 51 101 - 106 2022.11
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Three-dimensional navigation scheme for robot swarms capable of adapting to environmental constraints Reviewed
Kouki Ogata, Geunho Lee, and Yasuhiro Bonkobara
Proc. the SICE Annual Conference 2021 792 - 795 2021.9
Language：English Publishing type：Research paper (international conference proceedings)
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Three-dimensional navigation scheme for robot swarms capable of adapting to environmental constraints Reviewed
Kouki Ogata, Geunho Lee, and Yasuhiro Bonkobara
Proc. the SICE Annual Conference 2021 792 - 795 2021.9
Language：English Publishing type：Research paper (international conference proceedings)
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Geometric deployment scheme for robot swarms capable of adapting to unknown borders Reviewed
Kouki Oata, Geunho Lee, and Yasuhiro Bonkobara
Proc. JSME International Conference on Design and Concurrent Engineering 2021 & Manufacturing Systems Conference 2021 50 - 1-3 2021.9
Language：English Publishing type：Research paper (international conference proceedings)
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Geometric deployment scheme for robot swarms capable of adapting to unknown borders Reviewed
Kouki Oata, Geunho Lee, and Yasuhiro Bonkobara
Proc. JSME International Conference on Design and Concurrent Engineering 2021 & Manufacturing Systems Conference 2021 ( 50 ) 1 - 3 2021.9
Language：English Publishing type：Research paper (scientific journal)
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Fabrication and Evaluation of Nonlinear Springs for a Velocity Seismometer
Hiroki SADAKATA, Yasuhiro BONKOBARA, Takayuki HAMAHATA, Shinichi TERAZONO, Takahiro MAEDA
49 51 - 60 2020.9
Language：Japanese Publishing type：Research paper (scientific journal)
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Evaluation and Issues of “Period for Inquiry-Based Cross-Disciplinary Study" for High School Student at Faculty of Engineering, University of Miyazaki
Hiroki TAMURA, Chihiro MORITA, Yasuhiro BONKOBARA, Masakazu ARAI, Kazuhiro SUGAMOTO, Makoto SAKAMOTO, Takahiro ISHIZU
49 17 - 22 2020.9
Language：Japanese Publishing type：Research paper (scientific journal)
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A Study on the Reduction Mechanism of Piping Vibration by Using Two Flexible Joints
Taiga TERAHARA, Yasuhiro BONKOBARA, Takayuki HAMAHATA, Takahiro KONDOU
Memoirs of Faculty of Engineering, University of Miyazaki 49 45 - 50 2020.9
Language：Japanese Publishing type：Research paper (scientific journal)
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Ko INAGAKI, Yasuhiro BONKOBARA, Takahiro KONDOU
Transactions of the JSME 85 ( 876 ) 19-00006 2019.7
Language：Japanese Publishing type：Research paper (scientific journal)
In order to reduce the power consumption of the household refrigerator further, it is necessary to control the rotational speed of a reciprocating compressor as low as possible. However, several natural frequencies of the compressor exist in the low rotation region. Therefore, the resonance occur in the compressor due to the unbalance force arising from the piston motion synchronous with rotational speed, and then the vibration of the compressor may be transmitted to the refrigerator. In this study, the compressor was set on a steel plate for experiment, and the vibration characteristic of the compressor supported by means of conventional four points support method is examined. Based on the obtained results, the five points support method is newly proposed in order to suppress the vibration transmission. In the proposed method, the compressor is supported by low stiffness support elements at the four corners and a high stiffness support element at the center. Analytical and experimental results confirm that the natural frequencies of the compressor can be reduced by means of the five points support method as compared with the four points support method. From the results of driving experiment, it was also proven that the resonance of the compressor is hardly occurred in the low rotation region, and the vibration transmission from the compressor to the plate can be reduced.
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A low-vibration type compressor for refrigerators using a self-standing support method
Ko INAGAKI, Yasuhiro BONKOBARA, Takahiro KONDOU, Mie IKE, Takayuki HAMAHATA
24th International Compressor Engineering Conference 2018.7
Language：English Publishing type：Research paper (international conference proceedings)