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基于Euler-Bernoulli 梁理论的微车轴管长度匹配性研究

  

  • 出版日期:2016-06-30 发布日期:2016-06-28
  • 基金资助:
    广西科技厅资助项目(桂科合1346011-6)

Research on Length Matching of Micro-Vehicle’s Shaft Pipe Based on Euler-Bernoulli Theory

  • Online:2016-06-30 Published:2016-06-28

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摘要： 以某微车传动轴为研究对象，采用Euler-Bernoulli 梁理论分别建立了单根轴管长度系列与不同轴管长度匹配系列的运动微分方程，并计算出其对应的弯曲固有圆频率及一阶临界转速。经计算，研究车型传动轴最高工作转速均低于对应一阶临界转速，可避免发生共振。为了研究确定动力学性能最优的轴管长度匹配，构建了五组传动轴样机模型，对模型进行动力学分析，为轴管长度匹配研究提供理论依据和仿真参考。

关键词: 传动轴管, Euler-Bernoulli 梁理论, 长度匹配, 虚拟样机

Abstract: Take one micro-vehicle’s transmission shaft as the research object, and based on Euler-Bernoulli beam theory, the differential equation of single shaft pipe with different lengths and shaft pipes with different length matching are built. Natural bending frequency and corresponding first critical speed is calculated, which is verified that the maximum rotational speed of researched transmission shaft is lower than the first critical speed, as a result, it can avoid resonance. To confirm the best kinetic performance series, five prototypes of transmission shaft are built, and analyze their kinetic performance, which will give a theoretical basis and simulation reference for the length matching of shaft pipe.

Key words: shaft pipe, Euler-Bernoulli beam theory, length matching, virtual prototype