Yasuhiko Nishimura
Aichi Institute of Technology
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Publication
Featured researches published by Yasuhiko Nishimura.
Journal of Materials Engineering and Performance | 2012
Kohei Takeda; Hisaaki Tobushi; Kento Mitsui; Yasuhiko Nishimura; Kouji Miyamoto
In order to develop novel shape memory actuators, the torsional deformation of a shape memory alloy (SMA) tape and the actuator models driven by the tape were investigated. The results obtained can be summarized as follows. In the SMA tape subjected to torsion, the martensitic transformation appears along both edges of the tape due to elongation of these elements and grows to the central part. The fatigue life in both the pulsating torsion and alternating torsion is expressed by the unified relationship of the dissipated work in each cycle. Based on an opening and closing door model and a solar-powered active blind model, the two-way rotary driving actuator with a small and simple mechanism can be developed by using torsion of the SMA tape.
Materials Science Forum | 2011
Hisaaki Tobushi; Shunichi Hayashi; Elzbieta A. Pieczyska; Kousuke Date; Yasuhiko Nishimura
The SMC belt composed of two kinds of SMAs and SMP was fabricated and the three-way movement and recovery force in bending were investigated. The results obtained can be summarized as follows. (1) The three-way bending movement was achived during heating and cooling based on the characteristics of the SMA tapes and the SMP sheet. (2) The recovery force increased during heating and decreased during cooling. The recovery force was evaluated by the proposed simple model.
Archives of Mechanics | 2011
Hisaaki Tobushi; Shunichi Hayashi; Elzbieta A. Pieczyska; Kousuke Date; Yasuhiko Nishimura
Journal of Theoretical and Applied Mechanics | 2011
Hisaaki Tobushi; Kouji Miyamoto; Yasuhiko Nishimura; Kento Mitsui
Transactions of the Japan Society of Mechanical Engineers. A | 2011
Hisaaki Tobushi; Shunichi Hayashi; Kousuke Date; Yasuhiko Nishimura
The Proceedings of the Materials and Mechanics Conference | 2012
Kohei Takeda; Yasuhiko Nishimura; Hisaaki Tobushi; Shunichi Hayashi
The Proceedings of Conference of Tokai Branch | 2012
Yasuhiko Nishimura; Kohei Takeda; Hisaaki Tobushi; Shunichi Hayashi
The Proceedings of Conference of Tokai Branch | 2012
Kohei Takeda; Yasuhiko Nishimura; Kento Mitsui; Hisaaki Tobushi
The Proceedings of the Materials and Mechanics Conference | 2011
Yasuhiko Nishimura; Hisaaki Tobushi; Shunichi Hayashi
The Proceedings of Conference of Tokai Branch | 2011
Kento Mitsui; Hisaaki Tobushi; Kazuhiro Kitamura; Yukiharu Yoshimi; Kouji Miyamoto; Yasuhiko Nishimura
