固体力学与飞行器总体设计

磁流变起落架的开关控制落震载荷减缓实验

  • 康在飞 ,
  • 王乐 ,
  • 姜澎伟 ,
  • 杨智春
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  • 1.西北工业大学 航空学院,西安 710072
    2.航空工业成都飞机设计研究所,成都 610091
.E-mail: yangzc@nwpu.edu.cn

收稿日期: 2023-08-09

  修回日期: 2023-10-31

  录用日期: 2024-01-09

  网络出版日期: 2024-01-17

基金资助

国家级项目

Experimental research on drop loading alleviation using on⁃off control for magneto⁃rheological landing gear

  • Zaifei KANG ,
  • Le WANG ,
  • Pengwei JIANG ,
  • Zhichun YANG
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  • 1.School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China
    2.AVIC Chengdu Aircraft Design & Research Institute,Chengdu 610091,China
E-mail: yangzc@nwpu.edu.cn

Received date: 2023-08-09

  Revised date: 2023-10-31

  Accepted date: 2024-01-09

  Online published: 2024-01-17

Supported by

National Level Project

摘要

起落架磁流变缓冲器是根据磁流变效应设计的一种半主动式缓冲器,可以通过调节励磁线圈电流来改变缓冲器的阻尼,从而减缓起落架的着陆载荷。本文设计了一款带开关控制的起落架磁流变缓冲器,对磁流变缓冲器的电路动态响应进行测试。针对电路响应时间延迟问题,提出并设计出带局部负反馈的开关控制器,通过调节磁流变缓冲器励磁线圈电流,以减缓着陆载荷,并通过落震实验验证了对着陆载荷的减缓效果。落震实验结果表明,使用带局部负反馈的开关控制方法,与磁流变缓冲器励磁线圈未通电时(即常规油-气式缓冲器)相比,落震载荷峰值降低10.3%。

本文引用格式

康在飞 , 王乐 , 姜澎伟 , 杨智春 . 磁流变起落架的开关控制落震载荷减缓实验[J]. 航空学报, 2024 , 45(12) : 229425 -229425 . DOI: 10.7527/S1000-6893.2024.29425

Abstract

The magneto-rheological buffer of the landing gear is a semi-active damper designed based on the magneto-rheological effect. It can adjust the damping level of the buffer by varying the current of the exciting coil, thereby alleviating the landing load of the landing gear. We design a magneto-rheological buffer with on-off control and test the circuit dynamic response of the magneto-rheological buffer. To solve the time delay problem of the circuit response, an on-off controller with local negative feedback is proposed and designed to adjust the excitation coil current of the magneto-rheological buffer to alleviate the drop load. The effectiveness of alleviating the landing load is validated through the drop test. The results show that using the on-off control strategy with local negative feedback, we can reduce the peak value of the drop load by 10.3%, compared with the case in which the exciting coil is not energized (i.e., the oleo-pneumatics buffer).

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