多转子轴系调整参数的优化方法

在旋转机械安装过程中,需要对组成轴系的各转子部件进行精确的对中调试。针对如何确定此类对中调试参数的问题,结合转子轴系的一般物理模型和调整工艺,建立了调整关系模型。在分析调整过程参数的基础上,基于遗传算法提出了一种适用的数值分析方法,使以往单独使用搜索寻优或遗传算法的某些局限性得以改善,解决了有约束多变量规划问题全域优化的求解问题,并提高了计算效率。在发电厂大型机组检修过程的试用表明:采用旋转机械转子部件对中调整方案的优化分析方法,可明显提高调整方案的合理性和有关参数计算的精度,进而有效地保证安装质量,同时减少转子部件调整的工作量,为机组的提前装复和投产提供技术保障。

Optimum Method for the Parameter Aligning the Rotors System

This paper proposes an optimization method of alignment of multi-rotating parts in mechanical systems.An alignment model has been developed for determination of parameters in the alignment process.A new numerical method based on Genetic Algorithm(GA)is also presented.This method can be used for finding global optimum of constrained programming problems with multi-variables and can overcome the shortcomings of some existing methods. It has been convinced by a real test in a large-scale maintenance of generating units that the proposed method can improve the quality of installation and reduce the working load of aligning the rotating parts.