中国电机工程学报2012，Vol.32Issue(26)：132-137,6.
不同载荷下基座松动转子系统动力学特性分析
Dynamic Characteristic Analysis of a Rotor System With Pedestal Looseness Under Two Load Cases
摘要
Abstract
By taking a single-span rotor system with two discs as the research object, the pedestal looseness fault was simulated using a piecewise linear spring/damping model and then this model was combined with the finite element (FE) model of the rotor system. Two different load conditions were determined based on API Standard 617 and the spectrum cascade and rotor orbit were used to analyze the influence of dynamic characteristics on shaft system by the stiffness of non-loose bolts, looseness clearance and rotating speed. The results show that different bifurcation forms, multiple periodic and quasi-periodic motions can be observed under two load cases, and the system motion is more complicated under the second load case. The results will provide theoretical references for fault diagnosis, dynamic design, and safe operation of rotor-bearing system.关键词
基座松动/转子系统/动力学特性/有限元Key words
pedestal looseness/ rotor system/ dynamic characteristic/ finite element分类
机械制造引用本文复制引用
马辉,张志,太兴宇,闻邦椿..不同载荷下基座松动转子系统动力学特性分析[J].中国电机工程学报,2012,32(26):132-137,6.基金项目
国家自然科学基金项目(50805019),中央高校基本科研业务费专项项目(N100403008),教育部新世纪人才支持计划(NCET-11-0078). （50805019）
