灯光助降系统摇摆测试台运动分析与仿真

Kinematics analysis and simulation of the test tilter for the optical landing aid system

根据灯光助降系统横摇、纵摇指示器的设计要求,提出了一种三自由度并联摇摆测试台,用于试验指示器内发射光束的稳定性能。采用解析法建立了该测试台的运动方程,算例仿真分析结果表明,驱动主运动支链的活塞杆移动,可以实现既定规律下运动平台的横摇、纵摇和升沉运动,满足灯光助降系统的性能测试要求。

According to the requirement of the rolling and pitching indicator in the optical landing aid system, the parallel test tilter with three degrees of freedom which can try out stable performance of the transmitting beam in the indicator is put forward. The kinetic equation of test platform is constructed based on the analytical method, simulation result indicates that the parallel test tilter can realize the rolling, pitching and heaving motion which follows the ordering principles by driving the motion of the piston rod in the main branching chain, and satisfy the property testing of the optical landing aid system.