CAJ | 학술논문

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。
위료연구전자팽마시비선성동역학행위,설계료일충가이모의단점、다점、국부、정주팽마적전자팽마실험장치,병차재ZT-3형다공능전자시험기상진행료팽마고장시험연구,통과개변전자전속화전정건간극래관찰팽마전자재불동조건하적진동정황,동시운용파형도、빈보도、축심궤적분석료전자계통팽마시적비선성향응。시험결과표명,본문설계적팽마장치교전통팽마라정경능진실적모의전정팽마고장,대제승팽마고장시험연구제공료일정적방법수단。
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.