Parameter optimization for the design of constant-force elements using SMAs

Issue title: Proceedings from the 16th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2013)

Guest editors: Xavier Maldague and Toshiyuki Takagi

Article type: Research Article

Authors: Zhou, Ying^a | Wang, Minghui^a | Zhao, Ruzhen^a | Luo, Yun^{a; *}

Affiliations: [a] State Key Laboratory of Mechanical System and Vibration, Institute of Biomedical Manufacturing and Life Quality Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China | Université Laval, Canada | Tohoku University, Japan

Correspondence: [*] Corresponding author: Yun Luo, State Key Laboratory of Mechanical System and Vibration, Institute of Biomedical Manufacturing and Life Quality Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Rd., Shanghai 200240, China. Tel./Fax: +86 21 3420 6078; E-mail: luoyun@sjtu.edu.cn

Abstract: Constant-stress phenomenon is an unique property of shape memory alloys (SMAs) and could be widely used in designing surgical devices. It is easily obtained by stretching a SMA wire, but for SMA strips little work has been done. This paper presents a design of constant-force elements by bending superelastic SMA strips. The numerical results show its feasibility for practical use.

Keywords: Constant-force, shape memory alloys, parameter optimization

DOI: 10.3233/JAE-141914

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 45, no. 1-4, pp. 839-843, 2014