主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2022, Vol. 41 ›› Issue (12): 1705-1708.

• • 上一篇    下一篇

电动机场消防车动力耦合装置的动力学特性研究

邹瑞明1,2，熊升华1,2   

  1. （1. 中国民用航空飞行学院 民航安全工程学院，四川 广汉618307；2. 中国民用航空飞行学院 民机火灾科学与安全工程四川省重点实验室，四川 广汉618307）
  • 出版日期:2022-12-15 发布日期:2022-12-16
  • 作者简介:作者简介：邹瑞明（1991- ），男，江西樟树人，中国民用航空飞行学院讲师，博士，主要从事民航安全与应急管理研究，四川省广汉市南昌路四段46号，618307。
  • 基金资助:
    国家重点研发计划（2018YFC0809500）；中国民用航空飞行学院科研基金（J2021-106）

Study on dynamic characteristics of powercoupling device of electric ARFF vehicle

Zou Ruiming1,2, Xiong Shenghua1,2   

  • Online:2022-12-15 Published:2022-12-16

摘要： 摘 要：以我国全新研发的某型电动机场消防车作为研究对象，采用动力学仿真的方法分析了其动力耦合传动装置在重载高速工况下的动力学响应。构建的动力学模型考虑了齿轮传动的时变刚度、齿侧间隙等非线性特性，齿轮轴基于Timoshenko梁理论考虑为柔性轴，轴承力则根据轴承的几何特性采用Lamina模型进行计算。研究结果表明：齿轮啮合导致的44阶次对于动力耦合传动箱的振动总量贡献最为突出，且反转工况在2 568 r/min附近存在明显的共振峰值；通过工作变形分析可知，该共振峰值的出现与输出轴的柔性振动模态相关；适当增大截面尺寸可以有效提高输出轴的弯曲刚度，并改变其振动频率，避免在工作转速范围内可能出现的共振，提升系统阶次的线性度。

关键词: 关键词：电动机场消防车, 传动系统, 动力耦合, 齿轮

Abstract: A new type of electric ARFF vehicle developed in China is taken as the research object. The dynamic response of the power coupling transmission device under heavy load and high speed condition is analyzed by dynamic simulation. The dynamic model is established by considering the nonlinear characteristics of the gear transmission in detail, such as time-varying stiffness and backlash. The gear shaft is considered as a flexible shaft based on Timoshenko beam theory. The bearing force is calculated by Lamina model according to the geometric characteristics of the bearing type. The results show that the 44th order caused by gear meshing contributes most to the overall level vibration of the power coupling device, and there is an obvious resonance peak near 2 568 r/min in reverse condition. Through the analysis of operational deflection shape, it can be seen that the resonance is related to the flexible vibration mode of the output shaft. Increasing the section size of the output shaft can effectively improve its bending stiffness and change the vibration frequency, so as to avoid possible resonance in the range of working speed and improve the linearity of the system order.

Key words: electric ARFF vehicle, drive system, power coupling, gear