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在计算时变啮合刚度的基础上,推导了承载传动误差简化计算公式,并与有限元计算方法进行了比较,表明两种计算方法得到的承载传动误差的幅值、形状及一阶频谱幅值随重合度的变化趋势基本一致.根据承载传动误差简化公式定性的分析了负载扭矩与实际重合度的关系、承载传动误差的变化规律、齿面印痕和几何传动误差对承载传动误差的影响.最后根据分析结果,提出基于承载传动误差的齿面优化设计的优化策略,优化变量为接触迹线的角度、几何传动误差的幅值,优化目标为承载传动误差在较宽的负载范围内波动最小.
Based on the calculation of the time-varying meshing stiffness, the simplified calculation formula of bearing transmission error is derived and compared with the finite element method. The results show that the amplitude, shape and first-order spectral amplitude According to the simplified formula of bearing transmission error, the relationship between load torque and actual coincidence degree, the variation rule of bearing transmission error, the influence of tooth surface footprint and geometric transmission error on bearing transmission error were analyzed finally. According to the analysis results, an optimization strategy based on the optimization of tooth flanks with transmission error is put forward. The optimal variables are the angle of contact trace and the amplitude of geometric transmission error. The optimization objective is to minimize the fluctuation of bearing transmission error over a wide load range.