Design of a quick response SMA actuated segmented nut for space release applications

Xiaoyong Zhang; Xiaojun Yan; Qiaolong Yang

doi:10.1117/12.847454

1 April 2010 Design of a quick response SMA actuated segmented nut for space release applications

Xiaoyong Zhang, Xiaojun Yan, Qiaolong Yang

Proceedings Volume 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010; 764738 (2010) https://doi.org/10.1117/12.847454
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Spacecrafts require a variety of separation and release devices to accommodate separation from the launch vehicle or deployment of heat radiation panels, solar arrays and other appendages. In order to overcome drawbacks of the current release devices, this paper proposes a design scheme of release device with a form of segmented nut and actuated with SMA (Shape Memory Alloy) wire. In order to validate the release device's function and performance, ground tests including single device response time tests, synchronous tests of two devices, fatigue life tests were carried out. Tests results show that the innovative space release device developed in this paper owning the advantages of small size, quick response, long fatigue life, high simultaneity and auto-reset has a potential use in space engineering.

Citation Download Citation

Xiaoyong Zhang, Xiaojun Yan, and Qiaolong Yang "Design of a quick response SMA actuated segmented nut for space release applications", Proc. SPIE 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010, 764738 (1 April 2010); https://doi.org/10.1117/12.847454

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