基于能量法和有限元法的齿根裂纹缺陷研究
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摘要
齿根裂纹是齿轮传动系统最常见的一种缺陷类型,会对整个机械设备造成巨大的影响,如带来冲击载荷、降低机械传动系统的刚性和传动比。以直齿圆柱齿轮为研究对象,采用能量法和有限元法分别建立了有裂纹和无裂纹齿轮副的啮合刚度模型,研究齿根裂纹对齿轮刚度的影响情况,并比较分析了能量法和有限元法进行齿根裂纹研究时各自的特点。
Gear crack is the most common type of defect in gear transmission system,which will have a tremendous impact on the whole mechanical equipment,such as bringing impact load, reducing the rigidity and transmission ratio of the transmission system. The meshing stiffness calculation model of spur gear pairs with cracks and without cracks was established by energy method and finite element method. The influence of root cracks on gear stiffness was calculated,and the change rule of meshing stiffness was studied. The characteristics of the two methods were compared and analyzed.
Gear crack is the most common type of defect in gear transmission system,which will have a tremendous impact on the whole mechanical equipment,such as bringing impact load, reducing the rigidity and transmission ratio of the transmission system. The meshing stiffness calculation model of spur gear pairs with cracks and without cracks was established by energy method and finite element method. The influence of root cracks on gear stiffness was calculated,and the change rule of meshing stiffness was studied. The characteristics of the two methods were compared and analyzed.
引文
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[2]李忙,姜永升,陈润松.风源主机从动齿轮断齿失效分析[J].金属加工(热加工),2018(10):41-43.
[3]戴申梅.叉车主动锥齿轮断裂原因分析[J].理化检验(物理分册),2018,54(9):698-700+704.
[4]王伟.齿轮齿面裂纹产生原因的分析及应对措施[J].机械制造,2018,56(8):72-74.
[5]慧玲.基于改进能量法的行星齿轮时变啮合刚度求解[J].机械传动,2018,42(8):91-97.