基于ANSYS齿根裂纹对斜齿轮接触应力影响分析
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摘要
为了探究齿根裂纹对斜齿圆柱齿轮接触应力的影响,建立斜齿轮啮合三维有限元模型,并基于手工分区控制网格划分策略对模型进行静态接触应力的仿真分析,通过与理论计算结果对比证实了此有限元方法的准确性;进而对斜齿轮有限元模型引入齿根裂纹,分析有裂纹和无裂纹两种运行状态下动态接触应力变化情况,结果表明:齿根裂纹使斜齿圆柱齿轮的最大接触应力波动加剧,断齿故障的发生概率增大。
For studying effect on contact stress of root crack on helical cylindrical gear, a three-dimensional finite element model of helical gear meshing was established, and the static contact stress of the model was simulated and analyzed based on manual partition control grid division strategy. The accuracy of the finite element method was verified by comparing with theoretical calculation results. Furthermore, the root crack is imported in the helical gear finite element model, and the dynamic contact stress changes under the two operating states of cracked and crack-free are analyzed. The results show that the root crack aggravates the maximum contact stress fluctuation of helical gear and increases the probability of tooth breakage.
For studying effect on contact stress of root crack on helical cylindrical gear, a three-dimensional finite element model of helical gear meshing was established, and the static contact stress of the model was simulated and analyzed based on manual partition control grid division strategy. The accuracy of the finite element method was verified by comparing with theoretical calculation results. Furthermore, the root crack is imported in the helical gear finite element model, and the dynamic contact stress changes under the two operating states of cracked and crack-free are analyzed. The results show that the root crack aggravates the maximum contact stress fluctuation of helical gear and increases the probability of tooth breakage.
引文
[1] 孔军廷.含齿根裂纹斜齿圆柱齿轮接触应力及模态分析[D].江西理工大学;2016.
[2] 王立华,李润方,林腾蛟,等.高速重载齿轮的有限元分析[J].中国机械工程,2003.14(20):1773-1778.
[3] Wang J,Howard I.The torsional stiffness of involute spur gears[J].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science.2004,218(1):131-142.
[4] 唐进元,彭方进,黄云飞.冲击载荷下的齿轮动应力变化规律数值分析[J].振动与冲击,2009,8(8):138-143.
[5] 李杰,张晶,赵旗.齿轮接触应力计算不同有限元模型的比较分析[J].机械设计与制造,2009,7:1-3.
[6] 鲁永健.航空发动机高速齿轮接触有限元分析[D].沈阳航空工业学院.2010.
[7] 刘爱敏,韩衍昭,王利红.斜齿轮传动啮合过程齿面接触应力有限元分析[J].机械设计与研究,2013,29(3):35-38.
[8] 李宁,李威.渐开线斜齿圆柱齿轮齿面接触强度分析[J].机械传动.2014,38(3):151-153
[9] 徐恺,苏建新,周永丹,等.齿轮线接触与点接触理论与有限元分析[J].齿轮传动,2014,38(8):77-81
[10] Santosh S.Patil,Saravanan Karuppanan,Ivana Atanasovska.Contact stress analysis of helical gear pairs,including frictional coefficients [J].International Journal of Mechanical Sciences,2014,205-211.
[11] 冯丽镘.斜齿圆柱齿轮传动装置故障诊断研究[D].吉林大学硕士论文,2014
[2] 王立华,李润方,林腾蛟,等.高速重载齿轮的有限元分析[J].中国机械工程,2003.14(20):1773-1778.
[3] Wang J,Howard I.The torsional stiffness of involute spur gears[J].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science.2004,218(1):131-142.
[4] 唐进元,彭方进,黄云飞.冲击载荷下的齿轮动应力变化规律数值分析[J].振动与冲击,2009,8(8):138-143.
[5] 李杰,张晶,赵旗.齿轮接触应力计算不同有限元模型的比较分析[J].机械设计与制造,2009,7:1-3.
[6] 鲁永健.航空发动机高速齿轮接触有限元分析[D].沈阳航空工业学院.2010.
[7] 刘爱敏,韩衍昭,王利红.斜齿轮传动啮合过程齿面接触应力有限元分析[J].机械设计与研究,2013,29(3):35-38.
[8] 李宁,李威.渐开线斜齿圆柱齿轮齿面接触强度分析[J].机械传动.2014,38(3):151-153
[9] 徐恺,苏建新,周永丹,等.齿轮线接触与点接触理论与有限元分析[J].齿轮传动,2014,38(8):77-81
[10] Santosh S.Patil,Saravanan Karuppanan,Ivana Atanasovska.Contact stress analysis of helical gear pairs,including frictional coefficients [J].International Journal of Mechanical Sciences,2014,205-211.
[11] 冯丽镘.斜齿圆柱齿轮传动装置故障诊断研究[D].吉林大学硕士论文,2014