建立斜齿轮齿面温度场有限元模型，分析齿面温度分布及热变形量。对实际的修形齿面进行承载接触分析，并利用遗传算法优化修形参数，然后考虑有限元计算的热变形量，确定新的修形方案。最后，通过齿轮性能试验验证修形效果良好。结果表明，修形方案很大程度上降低齿轮传动过程中产生的振动和噪音，修形后齿轮传动误差幅值降低了47.08%，而啮合线方向加速度幅值降低了70.35%。基于齿轮热弹变形的修形方法对提高齿轮系统的稳定性具有重要意义。
In this study, finite element (FE) model of helical gear was developed to evaluate their surface temperature distribution and thermal deformation. Based on simulating LTCA of the actual modification tooth surface, then genetic algorithm was used to optimized the modification parameters, a new modification scheme was determined by considering the finite element calculation of thermal deformation. In the end, the good effect was verified through a gear performance test. The results show that modification scheme is largely reduced the vibration and noise in the process of gear transmission. After the modification, gear transmission error of amplitude was reduced by 47.08%, meshing line direction acceleration amplitude was reduced by 70.35%. Modification methods based on thermal elastic deformation of gear is of great significance to improve the stability of the gear system.
2016,38(10): 99-102 收稿日期：2016-1-15
DOI：10.3404/j.issn.1672-7619.2016.10.019
分类号：TH132.41
作者简介：范一龙(1988-),男,助理工程师,研究方向为机械传动和齿轮动力学。
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