摘要
文章针对大型航天产品对界面力定量化试验的工程应用需求,提出一种基于振动台电压电流的界面力监测方法,建立界面力的获取程序和基于界面力评估的加速度振动控制方法,通过刚性模拟配重试验验证了方法的正确性,并通过两型包带振动试验进一步验证了方法的有效性和实用性。该方法可避免传统振动试验中采用加速度控制存在的过试验问题,为航天器有效载荷精细化设计和试验验证提供参考。
An acceleration control in the traditional vibration test by itself may induce a serious"over testing"problem.In view of the importance of the measurable interface force test in the engineering application of aerospace products,this paper proposes an indirect interface force monitoring method based on the voltage and the current of the moving coil of the electromagnetic shaking table.An interface force acquisition procedure is designed.Then the acceleration control based on the interface force assessment is implemented.This method is firstly verified by the simulated rigid mass model test,and then through the vibration test of two types of satellite-rocket locking devices,its effectiveness and practicability against the over testing are further proved.This study can be used for the detailed design and the test validation of the spacecraft payload.
作者
张群
鲁勇
毕京丹
张忠
宫晓春
ZHANG Qun;LU Yong;BI Jingdan;ZHANG Zhong;GONG Xiaochun(Beijing Institute of Structure and Environment Engineering,Beijing 100076,China)
出处
《航天器环境工程》
2019年第1期69-75,共7页
Spacecraft Environment Engineering
关键词
振动试验
界面力
力限控制
过试验
星箭锁紧装置
vibration test
interface force
force limit control
over test
satellite-rocket locking device
