摘要
通过模拟双转子航空发动机的几种典型振动故障模式,根据计算分析验证了借助于关联维数辨别不同故障模式方法的可行性,并将分形方法应用于实测的涡扇发动机转子振动信号分析之中。初步分析结果表明,由于不同故障形式的动力学形成机制不同,振动信号在相空间具有不同的特性,通常也具有不同的关联维数。
According to the simulation of some typical types of faults from two-spool aero-engine, the fea-sibility of using correlation dimension to determine the vibration fault mode is verified from calculation. This method has also been used in the factual data. The results of nonlinear time series signal show that correlation dimension can usefully reflect different kinematical mechanism.
出处
《燃气涡轮试验与研究》
2004年第3期17-22,共6页
Gas Turbine Experiment and Research
