针对动态载荷下行星齿轮传动系统齿面磨损问题
考虑了时变啮合刚度和齿廓磨损误差激励的影响
应用势能法求解齿廓磨损情况下的齿轮副啮合刚度
采用集中参数法建立了平移-扭转多自由度齿轮动力学模型
通过Newmar k-β时域积分法求解动态啮合力
基于变形协调原理确定齿间载荷分配系数
依据赫兹接触理论确定齿面接触压力分布
采用有限元方法等转角度离散齿面
基于Archard磨损公式建立了行星齿轮传动系统动态磨损数值仿真模型。通过算例
分析了不同磨损程度的啮合齿面接触压力分布
探讨了负载转矩和磨损次数对磨损的影响以及磨损深度与齿轮系统啮合刚度间的关系。仿真结果表明:磨损后双齿啮合区齿面压力呈"∧"形分布;磨损速率与负载转矩呈正比映射关系
与磨损次数呈指数映射关系;啮合刚度与最大磨损深度呈一次函数关系。该研究结果对行星齿轮传动系统的齿廓修形设计及减磨延寿具有一定的参考意义。
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