Vibro-Impact Modeling for Disturbance-Free Payload Satellite

被引：0

作者：

Yang H.-J. ^{[1
,2
]}

Liu L. ^{[1
,2
]}

Li X.-G. ^{[1
,2
]}

Zhao Y.-B. ^{[3
]}

机构：

[1] School of Astronautics, Northwestern Polytechnical University, Xi'an

[2] Shaanxi Aerospace Flight Vehicle Design Key Laboratory, Xi'an

[3] Shanghai Institute of Satellite Engineering, Shanghai

来源：

Yuhang Xuebao/Journal of Astronautics | 2019年 / 40卷 / 08期

关键词：

Collision; Disturbance-free payload; Flexible cable; Hertz contact theory; Newton Euler method;

D O I：

10.3873/j.issn.1000-1328.2019.08.002

中图分类号：

学科分类号：

摘要：

Since the payload module (PM) and support module (SM) of a disturbance-free payload (DFP) fly in close proximity formation, the two modules may have a high probability collision. Synthesizing the influence of the back-electromotive-force (back-EMF) and the flexible cable, the dynamics model of the DFP is established using the Newton Euler method. The contact force model is derived using the Hertz contact theory, and the influence of the contact force on the pointing accuracy and pointing stability of the payload module is analyzed. The numerical simulation results show that the collision reduces the pointing accuracy and pointing stability of the payload module by 5 orders of magnitude. The payload module can recover to the ultra-quiet and ultra-stable working state after the collision, but the recovery time exceeds 1400 s. The collision model in this paper is of great significance for studying the collision avoidance and collision control of DFP. © 2019, Editorial Dept. of JA. All right reserved.

引用

页码：861 / 869

页数：8

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