柴油机主运动机构运动精度可靠性算法

Calculation method for kinematical accuracy reliability of main drive mechanism of diesel engine

从机构运动精度可靠指标的几何意义出发,结合改进粒子群算法参数设置简单、收敛速度快,精度高的特点,提出了一种求解柴油机主运动机构运动精度可靠性的算法。该算法避免了传统算法中繁琐的偏导数求解,有效降低了计算量。经实例验证,该算法简便实用,满足计算精度要求,为机构运动精度可靠性的求解提供了一种新的有效便捷的途径。

According to the geometrical meaning of the kinematics accuracy reliability index, a method for kinematical accuracy reliability of main drive mechanism of diesel engine was presented by means of the combination of the improved PSO which has a lot of advantages such as less parameters, swift convergence rate and higher precision. The proposed method avoided the complicated partial derivatives in traditional method, and the computation was effectively reduced. It was shown by instances that the method was simple, practical and satisfied the requirements of calculated precision, thus a new valid method was provided for the solution of kinematical accuracy reliability of mechanism.