转子动静碰摩故障试验研究  

Experimental Study of Rotor Rub-impact Fault

作　　者：曲秀秀[1] 陈果[1] 乔保栋[1] 

机构地区：[1]南京航空航天大学民航学院,江苏南京210016

出　　处：《飞机设计》2011年第4期50-54,共5页Aircraft Design

基　　金：国家自然科学基金(50705042)资助项目;航空科学基金(2007ZB52022)资助项目

摘　　要：为了研究转子碰摩时非线性动力学行为,设计了一种可以模拟单点、多点、局部、整周碰摩的转子碰摩实验装置,并且在ZT-3型多功能转子试验器上进行了碰摩故障试验研究,通过改变转子转速和转静件间隙来观察碰摩转子在不同条件下的振动情况,同时运用波形图、频谱图、轴心轨迹分析了转子系统碰摩时的非线性响应。试验结果表明,本文设计的碰摩装置较传统碰摩螺钉更能真实的模拟转静碰摩故障,对提升碰摩故障试验研究提供了一定的方法手段。In order to study the nonlinear dynamics of a rubbing rotor system.An special device were designed to simulate the single point rubbing,multi-point rubbing,local rub-impact,and even full rubbing,The ZT-3 rotor experimental rig is used to simulate the rubbing fault.The vibration of the rubbing rotor was observed for different conditions which caused by change the speed of rotor and the gap between rotor and stator,The vibration waveforms,spectrums,orbits were used to analyze the nonlinear responses.The experimental results show that the new rubbing device can better simulate the real rubbing of the rotor and stator,and it is helpful to promote the observations of rub-impact fault.

关 键 词：碰摩故障 转子系统 混沌 非线性振动 

分 类 号：V231.96[航空宇航科学与技术—航空宇航推进理论与工程]