一种基于动态补偿技术的微小稳态推力还原方法

doi:10.7527/S1000-6893.2018.21885

流体力学与飞行力学

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一种基于动态补偿技术的微小稳态推力还原方法

周伟静, 洪延姬, 叶继飞, 李南雷, 常浩

航天工程大学激光推进及其应用国家重点实验室,北京 101416

收稿日期:2017-11-22 修回日期:2018-03-23 出版日期:2018-07-15 发布日期:2018-03-23
通讯作者: 常浩 E-mail:changhao5976911@163.com
基金资助:
国家自然科学基金（11502301，11602304）

A reduction method for micro steady-state thrust based on dynamic compensation technique

ZHOU Weijing, HONG Yanji, YE Jifei, LI Nanlei, CHANG Hao

State key Laboratory of Laser Propulsion & Application, Space Engineering University, Beijing 101416, China

Received:2017-11-22 Revised:2018-03-23 Online:2018-07-15 Published:2018-03-23
Supported by:
National Natural Science Foundation of China (11502301, 11602304)

摘要/Abstract

摘要： 新型微推力器是未来微纳卫星的生力军，其设计、研制和应用都离不开推力性能测量的工程支撑。在设计和研究阶段，新型微推力器稳态力输出时间与机械式直接测量系统稳态调整时间之间存在匹配问题，无法利用测量系统的稳态响应直接还原推力大小。提出一种基于动态补偿技术的稳态推力还原方法，通过分析稳态力工作时间、稳态力大小与测量系统稳态响应之间的关系，提出了动态补偿器的设计原则和推力还原步骤，并进行了实验验证。研究结果表明：当稳态推力实际工作时间大于测量系统周期的0.25倍，且小于测量系统稳态调整时间时，可利用动态补偿器设计原则建立新的等效测量系统，使最终的输出达到稳态，并利用最终的稳态响应均值还原推力大小。

关键词: 测量, 微推力器, 推力, 水平扭摆, 动态补偿

Abstract: New micro thrusters are vital force of micro/nano satellites in the future. Thrust measurement is very important support in the design, development and application of micro thrusters. In the design stage, the steady-state force working time of the thruster is sometimes difficult to match the setting time of the mechanical and direct measurement system. Therefore, the steady-state force cannot be obtained by the steady-state response. A reduction method for micro steady-state thrust is proposed based on the dynamic compensation technique. The relation between the working time and value of the steady-state thrust and the steady-state response of the measurement is analyzed. The design principles of the compensation filter and the steady-state thrust reduction steps are provided. Experiments are carried out to verify the method. The results show that when the working time of the steady-state thrust is longer than 0.25 times of the natural period of the measurement system and shorter than the setting time of the measurement system, the final output of the equivalent measurement system using the compensation filter can reach a steady state, and the range of the steady-state thrust can be obtained through the final steady-state output.

Key words: measurement, micro thruster, thrust, horizontal torsional pendulum, dynamic compensation

中图分类号:

V439
TN249

周伟静, 洪延姬, 叶继飞, 李南雷, 常浩. 一种基于动态补偿技术的微小稳态推力还原方法[J]. 航空学报, 2018, 39(7): 121885-121885.

ZHOU Weijing, HONG Yanji, YE Jifei, LI Nanlei, CHANG Hao. A reduction method for micro steady-state thrust based on dynamic compensation technique[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(7): 121885-121885.

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E-mail：hkxb@buaa.edu.cn

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一种基于动态补偿技术的微小稳态推力还原方法

A reduction method for micro steady-state thrust based on dynamic compensation technique

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