无杆飞机牵引车牵引力检测方法
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V351.34

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中国民航大学校级项目基金(2010QD02S)、国家自然科学基金(61405246)、机场地面特种设备“油改电”应用发展研究(DPDSR0010)


Research on Detecting Method of Towbarless Aircraft Tractor Traction
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University level project fund of Civil Aviation University of China(2010QD02S)、 National Natural Science Foundation of China(61405246)、Research on application and development of airport ground special equipment "oil-to-electricity"(DPDSR0010)

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    摘要:

    为了获得无杆飞机牵引车牵引飞机前起落架时牵引力大小值,提出了在飞机前起落架受力形变处粘贴应变片的检测方法,根据A320飞机前起落架结构及受载特点建立有限元模型,针对无杆飞机牵引车牵引、顶推飞机直线运动工况进行静力学仿真,选出对弯矩敏感且受力集中的阻力前撑杆为应变测量部位,并采用特定全桥组桥方式进行优化布置,提高响应输出量且温度补偿,在载荷校准试验中,使用已标定过的传统牵引杆牵引、顶推飞机,试验结果表明应变输出响应特性良好,通过对校准数据的分析,建立前起落架阻力前撑杆载荷与牵引力大小的函数关系,在无杆飞机牵引车实测试验中,利用校准系数换算间接得到符合直线运动工况变化规律的牵引力大小值。

    Abstract:

    In order to obtain the value of the traction force when the towbarless aircraft tractor pulls the aircraft nose landing gear, a detection method of sticking strain gauges to the stress deformation of the aircraft nose landing gear is proposed. According to the A320 aircraft nose landing gear structure and load characteristics, the finite element model is established. And the static simulation is conducted for the linear motion of the towbarless aircraft tractor towing and pushing the aircraft. The resistance front brace is sensitive to the bending and the force is concentrated, so it is selected as the strain measurement site. In order to improve response output and temperature compensation, the specific full bridge group bridge method is used to optimize the layout. In the load calibration test, the calibrated traditional towbar was used to tow and push the aircraft. The test results show that the strain output response characteristics are good. Through the analysis of the calibration data, the function relationship between the load of the resistance front brace and the traction force is established. In the actual measurement test of the towbarless aircraft tractor, the traction force value is obtained indirectly by using the calibration coefficient conversion, and it conforms to the changing law of the linear motion working condition.

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引用本文

高建树,梁慧中,孟祥森. 无杆飞机牵引车牵引力检测方法[J]. 科学技术与工程, 2021, 21(12): 5151-5156.
Gao Jianshu, Liang Huizhong, Meng Xiangsen. Research on Detecting Method of Towbarless Aircraft Tractor Traction[J]. Science Technology and Engineering,2021,21(12):5151-5156.

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历史
  • 收稿日期:2020-07-28
  • 最后修改日期:2021-01-27
  • 录用日期:2021-01-09
  • 在线发布日期: 2021-05-17
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