空间对接机构碰撞试验系统的开发研究

摘要

为研究空间对接机构在对接过程中的碰撞现象,研制了碰撞试验系统.探讨了试验系统方案;依据Hertz弹性接触理论,仿真计算了加速度频率特性,确定了加速度传感器的选择原则;利用该系统开展了低速碰撞试验.试验结果表明,该系统能够满足测量对接碰撞力的要求.%In the paper,a new ground based impact experiment system is designed to study the impact phenomenon of probe-cone docking mechanism in the course of spacecraft docking.Firstly,the whole scheme of the system,which includes the composition of the experiment system,experiment process,experimental sample and design of related devices,is given.Then,the frequency characteristic of acceleration and the effect of initial velocity on the impact time are summarized by numerical simulation on the basis of Hertz contact law,and the essential principle to choose the accelerometer for the experiment system is concluded.At last,the experiments of low speed impact are carried out.The experimental results show that the design scheme can meet the demand for measuring the docking impact force.