An Optimization Method for Meshing Parameters of Harmonic Drives Considering Mechanical Characteristics

doi:10.7652/xjtuxb201902003

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An Optimization Method for Meshing Parameters of Harmonic Drives Considering Mechanical Characteristics

更新时间：2025-07-09

- An Optimization Method for Meshing Parameters of Harmonic Drives Considering Mechanical Characteristics
- Vol. 53, Issue 2, Pages: 16-23(2019)
- 作者机构：
  
  西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201902003
  CLC： TH132.2
- Online First：10 February 2019，
  
  Published：2019
- 稿件说明：
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An Optimization Method for Meshing Parameters of Harmonic Drives Considering Mechanical Characteristics[J]. 2019, 53(2): 16-23.
DOI：

An Optimization Method for Meshing Parameters of Harmonic Drives Considering Mechanical Characteristics[J]. 2019, 53(2): 16-23. DOI： 10.7652/xjtuxb201902003.

摘要

针对谐波齿轮薄壁柔轮易发生疲劳失效的问题

提出了一种考虑力学特性的谐波齿轮啮合参数优化方法。该方法从特有的薄壁件受力与变形特点出发

将对柔轮应力具有较大影响的波发生器径向变形量与啮合区间一起作为优化目标

以波发生器廓线参数、柔轮齿廓参数与刚轮齿廓参数为设计变量

结合遗传算法与罚函数法建立了谐波齿轮啮合参数的无约束多目标优化数学模型

在平衡啮合区间与力学特性的基础上

确定了优化目标权重系数

并通过力学特性分析方法对优化结果的接触、刚度和应力进行分析

从而在啮合参数计算时

改善了易失效零件的受力状况。

Abstract

An optimization method for meshing paramters of harmonic drives that considers mechanical characteristics is proposed to solve the fatigue failure problem of thin walled flexspline of harmonic drive. The method starts from the characteristics of the stress and deformation of the unique thin-walled parts of harmonic drives and takes both the radial deformation quantity of wave generator and the meshing interval that have greater impact on the flexspline stress as optimization targets

while the parameters of the wave generator profile

the tooth profile parameters of the flexsplilne and circular spline are taken as design variables. Then an unconstrained multi-objective optimization mathematical model for harmonic drive meshing parameters is built by combining a genetic algorithm and a penalty function method. Optimal weight coefficients are determined by balancing the meshing interval and the mechanical characteristics. A mechanical characteristics analysis method is used to analyse the optimization results:the contact

stiffness and stress. Therefore

it improves the stress condition of the easily failed parts through calculating meshing parameters.

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Keywords

references

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