Dynamic Analysis of a Deployable Space Structure Using Passive Deployment Mechanism

Choi, Young-Jun; Oh, Hyun-Ung; Choi, Yong-Hoon; Lee, Kyung-Joo

Journal of the Korea Institute of Military Science and Technology 2008;11(3):161-168.

Young-Jun Choi, Hyun-Ung Oh, Yong-Hoon Choi, Kyung-Joo Lee

수동형 전개힌지를 이용한 전개형 우주 구조물의 전개 동특성 해석

최영준, 오현웅, 최용훈, 이경주

국방과학연구소

Abstract

The deployable space structure is necessary to minimize the satellite volume and launch cost. For the deployment, passive deployment mechanism has widely been used to attenuate a latch shock induced when the structure is just fully deployed. To reduce the latch shock, viscous damper is applied to the passive deployment mechanism and it can control the deployment speed of the structure. In this paper, dynamic analysis of the deployable space structure using the passive deployment mechanism with the viscous damper has been performed. The viscous damping values have been optimized through numerical simulation. The satellite's attitude influenced by pyro activation for the release of the structure has also been investigated.

Key Words: Deployable Space Structure, Satellite Attitude Control, Deployment Sequence, Deployment Hinge