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Proceedings Paper

Design of a quick response SMA actuated segmented nut for space release applications
Author(s): Xiaoyong Zhang; Xiaojun Yan; Qiaolong Yang
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Paper 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.

Paper Details

Date Published: 1 April 2010
PDF: 9 pages
Proc. SPIE 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010, 764738 (1 April 2010); doi: 10.1117/12.847454
Show Author Affiliations
Xiaoyong Zhang, BeiHang Univ. (China)
Xiaojun Yan, BeiHang Univ. (China)
Qiaolong Yang, China Academy of Space Technology (China)


Published in SPIE Proceedings Vol. 7647:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010
Masayoshi Tomizuka, Editor(s)

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