CONTROL DESIGN FOR A SIX DEGREE-OF-FREEDOM SHAKER

被引：0

作者：

Chung, Walter H. ^{[1
]}

Raines, Allen ^{[2
]}

Shishido, John ^{[2
]}

机构：

[1] Aerosp Corp, Electromech Control Dept, POB 92957-M4-976, Los Angeles, CA 90009 USA

[2] Aerosp Corp, Los Angeles, CA 90009 USA

来源：

SPACEFLIGHT MECHANICS 2011, PTS I-III | 2011年 / 140卷

关键词：

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Modern fiber-optic gyros are vulnerable to low-level, high frequency vibration. To test these gyros for margin, a six degree-of-freedom shaker has been built at The Aerospace Corporation. This shaker was based upon the Stewart-Gough platform, a.k.a. a hexapod. The closed-loop control of this mechanism ran into the limits of the real-time control processor and unexpected changes to the plant dynamics. Classical and modern, i.e. LQG, techniques, were examined but ultimately a mixed-sensitivity H-infinity controller was chosen for the final design. Coupled with a last-minute, ad hoc damper added to the system, this compensator led to a successful design.

引用

页码：1353 / +

页数：2

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