离心式作动器的设计与性能分析
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南京航空航天大学机械结构力学及控制国家重点实验室 南京 210016

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TN911.72

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机械结构力学及控制国家重点实验室(南京航空航天大学)自主研究课题(0115K01)、江苏高校优势学科建设工程基金资助项目


Design of the centrifugal harmonic force generator and analysis of performance
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State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics, Nanjing 210016,China

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    摘要:

    离心式作动器的适应频带宽、输出力大、结构简单、尺寸紧凑、重量轻、需用功率较小,很有优势。而国内基于离心式作动器的ACSR技术在直升机上的应用很少,因此,研究出一种新型的易于控制的离心式作动器很有必要。两个相同的偏心质量块同速反转时产生的离心力只有竖直方向上的,在此理论基础上,设计了一种输出力只有竖直方向上的新型离心式作动器,并且可以通过调节电机的角加速度轨迹对作动器输出力的幅值、相位、频率进行控制,最后基于LabVIEW对所提出的控制算法进行了仿真研究。仿真结果表明,在主动控制过程中,根据输入的目标信号,电机的角加速度轨迹进行了相关的改变,从而使得作动器的输出力信号得到了很好的控制,最终输出要求的目标信号。

    Abstract:

    The centrifugal actuator has some advantages, including large frequency bandwidth, large output, simple structure, compact size, light weight, less power and so on, so it has more advantages. However, the ACSR technology based on the centrifugal actuator is seldom applied in helicopters in domestic, therefore, it is necessary to do research on the active control algorithm about the system based on the centrifugal actuator. A new type of centrifugal actuator with oneway output force was designed,based on the theory that the direction of the centrifugal force which was generated by the same two eccentric mass blocks under the condition of reverse rotation with the same speed was vertical. And the amplitude, phase and frequency of the output force generated by the centrifugal actuator can be controlled by adjusting the angular acceleration of the servo motors. Finally, simulations were conducted using LabVIEW. The results show that in the process of active control, according to the input of the target signal, the change of the angular acceleration of the servo motors made the actuator′s output signal was controlled very well, so that, the final output signal reached the target.

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朱青霞,张方,姜金辉.离心式作动器的设计与性能分析[J].国外电子测量技术,2016,35(10):38-43

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  • 在线发布日期: 2016-11-23
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