空心传动轴静动态特性及影响因素分析
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摘要
基于有限元法,借助大型通用有限元软件ANSYS对某空心传动轴的静、动态特性进行分析,并考察内径对其静、动态特性的影响规律。通过分析得出,该空心传动轴在工作载荷作用下,承受的最大工作应力小于材料的许用应力。随着传动轴内径的增加,结构在工作载荷作用下承受的最大工作应力和约束状态下的第1阶固有频率均呈现增大趋势。分析结果为该传动轴结构的优化提供了依据。
Based on the finite element method,the static and dynamic characteristics of a hollow drive shaft were analyzed with the help of ANSYS software,and the influence of inner diameter on its static and dynamic characteristics was investigated.Through the analysis,it is concluded that the maximum working stress of the hollow drive shaft under working load is less than the allowable stress of the material. With increase of the inner diameter of the drive shaft,the maximum working stress under the working load and the first natural frequency of the restrained structure all show an increasing trend. The analysis results provide a basis for optimizing the structure of the drive shaft.
Based on the finite element method,the static and dynamic characteristics of a hollow drive shaft were analyzed with the help of ANSYS software,and the influence of inner diameter on its static and dynamic characteristics was investigated.Through the analysis,it is concluded that the maximum working stress of the hollow drive shaft under working load is less than the allowable stress of the material. With increase of the inner diameter of the drive shaft,the maximum working stress under the working load and the first natural frequency of the restrained structure all show an increasing trend. The analysis results provide a basis for optimizing the structure of the drive shaft.
引文
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[2]李学凌.煤矿机械设备中轴类零件维修探讨[J].机械研究与应用,2015,28(5):179-180.
[3]贺艺龙,赵坚,何陈,等.大型管磨机中空轴动力学特性分析[J].天津城建大学学报,2018,24(6):461-464.
[4]汤熊.大摆锤减速机传动轴失效断裂的分析与改进[J].机械研究与应用,2017,30(2):163-164.
[5]柴锡军.花键轴扭转变形及破坏分析[J].机械研究与应用,2018,31(2):33-35.
[6]聂文武,肖雨,毛洪海,等.某重型商用车传动轴强度与疲劳寿命分析[J].机械设计,2018,35(S1):166-168.
[7]糜健,肖才远,石瑞望,等.基于ANSYS的汽车传动轴的模态分析与结构改进[J].内燃机与配件,2018(2):47-49.
[8]文广,周桂源,王娟,等.基于有限元法的试验机转轴动力学分析[J].机械设计与制造,2013(7):137-139.
[9]张君浩,董学武,王东强.高速卷绕机传动轴的振动分析及控制研究[J].中原工学院学报,2017,28(6):23-27.
[10]谢柏林,张苗,周明刚,等.汽车传动轴的动态特性分析与减振设计[J].机械设计与制造,2018(6):63-65.
[11]尹荣栋,赵振东,陈鸿键,等.基于Opti Struct的某型汽车传动轴模态分析[J].农业装备与车辆工程,2018,56(7):6-10.