具有弹性静子的碰摩转子轴承系统非线性动力特性研究

PDF(2589 KB)

振动与冲击 ›› 2013, Vol. 32 ›› Issue (15) : 197-202.

论文

具有弹性静子的碰摩转子轴承系统非线性动力特性研究

陶海亮1,2,潘波1,2,高庆1,谭春青1,陈海生1

作者信息 +

Nonlinear dynamics of a rub-impact rotor supported by oil film bearings with a elastic stator

Tao Hai-liang1,2, Pan Bo1,2,Gao Qing1, Tan Chun-qing1, Chen Hai-sheng1

Author information +

文章历史 +

摘要

建立了非线性油膜力作用下具有弹性静子的转子-轴承系统碰摩故障模型。采用Rugge-Kutta数值积分方法对碰摩故障进行动力学求解，得到系统响应的分岔图。对比研究了有、无碰摩故障情况下系统动力特性，分析了静子质量及碰摩刚度对转子响应的影响。分析结果表明：静子质量越大、碰摩刚度越大，转静子的耦合作用越明显；碰摩刚度较小时，产生的碰摩力较小，即使发生碰摩，对系统的动力特性影响也很小。

Abstract

A dynamic model of rotor-bearing system with rub-impact fault was established, taking the stator elasticity and nonlinear oil-film force into account. The response of the rotor with rub-impact fault was calculated by Rugge-Kutta method, and the bifurcation diagrams were obtained to analyze dynamic characteristics of the system. The dynamic characteristics of the system with or without rubbing were compared and discussed. The effects of stator mass and rubbing stiffness on the response of the system was studied. The results indicate that the bigger stator mass and rubbing stiffness is, the greater coupling effects will happen on the rotor and stator. If the rubbing stiffness is small enough, the rubbing force of the stator has little effect on the dynamic characteristics of the system.

导出引用

陶海亮;潘波;高庆;谭春青;陈海生. 具有弹性静子的碰摩转子轴承系统非线性动力特性研究[J]. 振动与冲击, 2013, 32(15): 197-202

Tao Hai-liang;Pan Bo;Gao Qing;Tan Chun-qing;Chen Hai-sheng. Nonlinear dynamics of a rub-impact rotor supported by oil film bearings with a elastic stator[J]. Journal of Vibration and Shock, 2013, 32(15): 197-202