ON DYNAMIC COMPENSATION DESIGN OF PENDULUM TYPE MICRO-THRUST TEST FACILITY
Hao Wang · Journal of Chaohu College · 2013
The micro-thruster, as a key component in microsatellite, is very important in precise measurement of thrust. To overcome shortcomings,such as unstable equilibrium, slow response and large friction in traditional thrust test facility, a pendulum type structure is chosen in the design of micro-thruster test system. The dynamic model of the test system is built and simulated, which shows that the response curve has oscillation and instability. A dynamic compensation filter is designed based on the bilinear method. The response of the test system with compensation is simulated. The results show that the natural frequency increases from 2.2 to 3.32Hz and damping ratio increases from 0.02 to 0.707.