弧齿锥齿轮动态啮合质量的优化设计

摘要

To solve the problem of meshing parameters only determined by designer of optimum design of dynamic meshing behavior of spiral bevel gear, a global optimum method has been developed based on an improved PSO algorithm in this article. TCA and LTCA techniques were used to constitute the design. The design variables were the meshing parameters included in local synthesis method. The optimum objects included the symmetric degree of unloaded transmission error curve, the distance between the lower limit of unloaded transmission error and the lower limit of loaded transmission error, and the mean square deviation of loaded transmission error. This paper showed a global optimization method for dynamic meshing behavior of spiral bevel gear from design and machining. The results indicates that the method is simple , effective and credible.%在齿轮的啮合质量优化问题的研究中,针对弧齿锥齿轮动态啮合参数人为设定问题,需设计者具有足够的先验知识,造成花费时间多次反复.为进一步提高优化质量,根据改进粒子群优化算法提出了一种全局优化思路.利用TCA与LTCA技术,以局部综合法中的预设啮合参数为优化设计变量,以无载传动误差曲线的对称度、承载传动误差的下限与无载传动误差下限之间的距离及承载传动误差的均方差为优化目标函数,从设计和加工角度对弧齿锥齿轮的动态啮合质量进行了全局优化设计.仿真结果表明,方法简单有效,真实可靠,对提高弧齿锥齿轮的动态啮合质量优化提供了有效依据.