变速器斜齿轮宏观参数减振优化设计

doi:10.13229/j.cnki.jdxbgxb201606003

摘要/Abstract

摘要： 为了在变速器齿轮宏观参数设计阶段尽可能地降低齿轮啮合冲击振动,提出了一种斜齿轮宏观参数的减振优化设计方法。采用减小传递误差波动值作为减小冲击振动的手段,建立以减小冲击振动和体积为目标,同时考虑规范要求并保证强度的变速器斜齿轮宏观参数优化模型,采用遗传算法进行寻优。斜齿轮传递误差的计算方法考虑将斜齿轮副近似为众多小直齿轮副的叠加,并考虑相邻小直齿轮副的啮合角度的相位差,小直齿轮副的传递误差计算采用考虑轮体周向变形的改进石川法。优化结果表明,本文优化方法能够有效降低斜齿轮传递误差41%、降低体积1.34%。

关键词: 车辆工程, 变速器, 斜齿轮, 传递误差, 减振优化, 宏观参数

Abstract: A method to optimize the macro-parameters of helical gears in transmissions is developed to reduce meshing vibration in initial design phase of the transmission gearbox. In the optimization model, the optimization variables include the modulus, the helical angle, the tooth wide, the top gap coefficient etc. The optimization target is the synthesis of reducing meshing vibration and reducing the volume of the gear pair. The constraint conditions include the standard requirements and the strength requirement. The fluctuation value of the dynamic transmission error is considered as the index of the vibration. To calculate the dynamic transmission error of the helical gear pairs, the helical gear pair is approximated as the superposition of many smaller spur gear pairs, and the phase difference of the meshing angles of adjacent smaller spur gear pairs is considered. The deformation calculated by Ishikawa method and the circumferential deformation are considered in the dynamic transmission error and the dynamic meshing stiffness calculation of the smaller spur gear pairs. The optimization results show that the method developed in this paper can effectively reduce the transmission error of the helical gear by 41% and reduce the volume by 1.34%.

Key words: vehicle engineering, transmission, helical gears, transmission error, vibration damping optimization, macro-geometric parameters

中图分类号:

U463.212

宗长富, 任明辉, 万滢, 陈涛, 白鹰搏. 变速器斜齿轮宏观参数减振优化设计[J]. 吉林大学学报(工学版), 2016, 46(6): 1772-1779.

ZONG Chang-fu, REN Ming-hui, WAN Ying, CHEN Tao, BAI Ying-bo. Optimization of macro-geometric parameters of helical gears of transmissions to reduce vibration[J]. 吉林大学学报(工学版), 2016, 46(6): 1772-1779.

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