Modeling and Micro-vibration Control of Flexible Cable for Disturbance-Free Payload Spacecraft

被引：14
作者：
Yang, Hongjie [1 ]
Liu, Lei [1 ]
Liu, Yuan [2 ]
Li, Xinguo [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Astronaut, Shaanxi Aerosp Flight Vehicle Design Key Lab, Xian 710072, Peoples R China
[2] Harbin Inst Technol, Res Ctr Satellite Technol, Harbin 150080, Peoples R China
来源：
MICROGRAVITY SCIENCE AND TECHNOLOGY | 2021年 / 33卷 / 04期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
DFP spacecraft; Flexible cable model; Micro-vibration; Feedforward compensation; DESIGN;
D O I：
10.1007/s12217-021-09897-1
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Disturbance-Free Payload (DFP) spacecraft is a novel spacecraft architecture consisting of the support module(SM) and the payload module(PM), which can provide an ultra-quiet vibration environment for sensitive payloads, but in practical applications, flexible cables used for the power supply and data transmission resulting in an additional vibration transmission path from the support module to the payload module. To address the problem that the flexible cable degrades the pointing performance of the payload module, one nonlinear model consisting of static and dynamic components of the flexible cable is established, and solved by a method of the differential quadrature based time integration. Separately applied the impulse disturbance to the support module, the dynamic transmission characteristics of flexible cable are analyzed. To suppress the micro-vibration caused by the flexible cable, a disturbance feedforward control compensation based on the established exact model is proposed, and the effectiveness of the disturbance feedforward compensation method is verified by numerical simulation.
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页数：16
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