宽频角振动地面模拟试验设备的研制  

Development of a ground facility for simulating wide-band angular vibration

作　　者：邢志钢[1] 邢建伟[1] 王立[2] 郑钢铁[1] 

机构地区：[1]清华大学航天航空学院,北京100084 [2]北京控制工程研究所,北京100080

出　　处：《航天器环境工程》2013年第3期322-327,共6页Spacecraft Environment Engineering

基　　金：基础保障条件预先研究项目

摘　　要：为了解并减小探月着陆系统之敏感器容易受到宽频角振动影响的任务风险,有必要进行宽频角振动地面模拟试验。文章首先提出了宽频角振动的振动转换结构和测量方法,在此基础上完成了试验设备的研制,之后针对探月着陆系统成像敏感器遭遇的角振动环境进行了地面模拟测试。测试结果表明:该试验设备的宽频角振动模拟频率范围为0～2000 Hz,控制精度达到±15%(2σ),同时还可模拟包括平移和转动在内的着陆系统刚体运动。该设备已用于敏感器在角振动环境下的地面模拟试验验证。To mitigate the task risks of the lunar and deep-space landers caused by the wide-band vibrations of its optics and microwave sensors,the ground simulation test is necessary.In this paper,firstly,a vibration transform structure and a measurement method are proposed and a ground facility for simulating the wide-band angular vibration simulation is developed.With regard to the angular vibration environment for the imaging sensor used for the moon lander,a measurement test is carried out.The results show that the simulator can have angular vibrations in a frequency range of 0 to 2000 Hz,with a control precision of ±15%,and the rotational and translational speeds can be also set to the required values of the lander.The facility has been implemented for validating the performance of optic sensors in the angular vibration environment.

关 键 词：探月着陆系统 光学敏感器 地面模拟设备 宽带随机振动 角振动试验 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程] O329[理学—一般力学与力学基础]