噪声与振动控制2019，Vol.39Issue(5)：179-184,6.DOI:10.3969/j.issn.1006-1355.2019.05.034
裂纹对齿轮副模态频率的影响
Effects of Cracks on Modal Frequencies of a Gear Pair
摘要
Abstract
Because of the effects of manufacturing or working environments, cracks are often initiated and propagated in the surface of the gear teeth. And the effecting mechanism of cracks in different positions on modal frequencies of gear pairs is different. In this article, problems in the diagnosis of cracks in gear pairs was studied, the effects of crack positions on the modal frequencies of a gear pair were detected. Firstly, the analytical equation of modal frequencies for the gear pair was set up by considering the effects of fatigue cracks on the meshing stiffness of the gear pair. Then, the finite element mod-els of the gear pair with a root circle crack or a reference circle crack were set up by the ABAQUS code. Thereafter, the ef-fects of cracks with different crack parameters on modal frequencies of the gear pair were discussed. Results indicate that the changing of crack parameters can affect both the magnitudes and the variation trends of the modal frequencies of the gear pair. This conclusion can provide a support for diagnosis of cracks in gear pairs.关键词
故障诊断/齿轮副/裂纹位置/裂纹深度/模态频率Key words
fault diagnosis/gear pair/crack position/crack depth/modal frequency分类
机械制造引用本文复制引用
刘文光,丰霞瑶..裂纹对齿轮副模态频率的影响[J].噪声与振动控制,2019,39(5):179-184,6.基金项目
国家自然科学基金资助项目(51565039) （51565039）
陕西省教育厅科技资助项目(GJJ170584) （GJJ170584）
