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平均推力测量是脉冲微推力器推进性能研究的关键问题之一。研究了在标准的周期性信号作用下,二阶系统的响应与输入之间的关系。在欠阻尼条件下,得到了系统稳态平均回复力等于平均推力的重要结论,仿真结果证实了结论。研究结果亦可应用于脉冲微推力器的总冲研究。
The average thrust measurement is one of the key issues in the study of the propulsion performance of pulsed micro thrusters. The relationship between the response and input of a second-order system under the action of a standard periodic signal is studied. Under the condition of under-damping, the important conclusion that the average steady-state return force is equal to the average thrust force is obtained. The simulation results confirm the conclusion. The results can also be applied to the total impulse research of pulsed micro thrusters.