柔性支撑转子支撑刚度对临界转速的影响分析  

Analysis of Influence of Support Stiffness of Flexible Support Rotor on Critical Speed

作　　者：任正义[1] 朱健国 杨立平[1] REN Zhengyi;ZHU Jianguo;YANG Liping(Engineering Training Center, Haerbin Engineering University, Haerbin 150001, China;College of Mechanical and Electrical Engineering, Haerbin Engineering University, Haerbin 150001, China)

机构地区：[1]哈尔滨工程大学工程训练中心,黑龙江哈尔滨150001 [2]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001

出　　处：《机械制造与自动化》2019年第5期57-59,共3页Machine Building & Automation

基　　金：国家“863”高技术研究发展计划资助项目(2013AA050802)

摘　　要：旋转机械的工作转速在其临界转速分布范围内会产生剧烈振动,严重时会使系统遭到破坏,因此研究临界转速的影响因素至关重要。建立柔性支撑的储能飞轮转子有限元模型,基于ANSYSWorkbench分析软件对不同支撑刚度条件下转子的临界转速进行计算和分析。通过计算结果分析支撑刚度对转子的前三阶临界转速的影响,为使系统的临界转速偏离工作转速提供设计和调整依据。The violent vibration may be caused by the rotating speed of machine within its critical speed distribution range. The system may be damaged by it. Therefore, it is very important to study the influencing factors of the critical speed. The finite element model of the energy storage flywheel rotor with flexible support is established. Based on ANSYS Workbench analysis software, the critical rotating speed of the rotor under different support stiffness conditions is calculated and analyzed. The influence of the support stiffness on the first three critical speeds of the rotor is analyzed according to the calculation results, and the basis is provided for the design of the critical speed of the system and adjusting the deviation of the working speed.

关 键 词：柔性支撑 转子 支撑刚度 临界转速 

分 类 号：TH133.7[机械工程—机械制造及自动化]