摘要
针对具有初始弯曲故障的转子系统振动影响,建立了具有初始弯曲的多轮盘转子系统第一跨转子模型及动力学方程,仿真分析了不同初始弯曲量、偏心距及阻尼比对转子系统振动的影响,对具有初始弯曲的多轮盘转子系统振动特性进行研究。结果表明:转子系统振动响应随着初始弯曲量的增大而增大;随着偏心距、阻尼比的增大而减小。搭建了具有初始弯曲的三跨双盘转子系统试验台,获得了具有初始弯曲故障的转子位移信号,通过仿真与试验对比分析,验证了方程的有效性及仿真结果的正确性。
Due to the influence of the rotor system vibration with the initial bending,the dynamic model of rotor system with initial bending was established,and the dynamic equation of the rotor system with initial bending was derived.The influence of the different residual bow,eccentricity and damping ratio to the rotor system was analyzed,and then the vibration characteristics of the rotor system with a residual shaft bow were studied.The results show that the longitudinal responses of the rotor system increase as the residual bow increases,and the eccentricity and damping ratio decreases.Three-span double-disc rotor system test rig was established,and the longitudinal responses with residual bow fault were obtained.The results of the experiment verified the validity of the equation and the simulation.
出处
《机械设计与制造》
北大核心
2013年第11期26-28,共3页
Machinery Design & Manufacture
基金
国家自然科学基金项目资助(51075292/E050302)
关键词
初始弯曲
多轮盘转子系统
振动特性
偏心距
Residual Bow Fault
Multi-Disk Rotor System
Vibration Characteristics
Eccentricity
