柔性转子-支承系统有限元仿真及多目标优化设计  

Finite Element Analysis and Multi-objective Optimization of Flexible Rotor-bearing System

作　　者：姜磊 JIANG Lei(Research Institute of Physical and Chemical Engineering,Tianjin 300180,China;Science and Technology on Particle Transport and Separation Laboratory,Tianjin 300180,China)

机构地区：[1]核工业理化工程研究院,天津300180 [2]粒子输运与富集国防科技重点实验室,天津300180

出　　处：《原子能科学技术》2021年第S02期327-334,共8页Atomic Energy Science and Technology

基　　金：中核集团“青年英才”项目;天津市青年人才托举工程项目(TJSQNTJ-2018-15)。

摘　　要：转子-支承系统动力学分析及参数优化是高速旋转机械设计的基础。本文采用有限元软件建立了双转盘柔性转子-支承系统有限元仿真模型,对系统的稳定性和过临界响应进行了求解分析。基于有限元软件命令流和粒子群智能优化算法开发了多目标优化程序,对建立的转子-支承系统的支承参数和中轴尺寸参数进行了优化计算。综合比较以稳定性最优和过临界响应最优为目标的参数优化结果,给出了转子高速运行阶段采用稳定性优化参数结果,而启动阶段以过临界响应优化结果对支承参数进行调整的方案。Dynamics analysis and parameters optimization of rotor-bearing system provide a foundation for the design of high speed rotational machines.Finite element analysis(FEA)model of a flexible rotor-bearing system was built with FEA software.Both the stability and critical response problems were solved.Based on APDL language and particle swarm algorithm,multi-objective optimization programs were developed.All the bearing parameters and the journal diameter were optimized.Considering the results of both stability optimizaiton and critical response optimization,it is proposed that the stability optimization results should be adopted during a high speed operation of the rotor and the bearing parameters should be adjusted according to the critical response optimization result.

关 键 词：柔性转子 转子-支承系统 有限元分析 多目标优化设计 

分 类 号：TL92.2[核科学技术—核燃料循环与材料]