Cepstral methods of operational modal analysis to separate multiple sources

该项目旨在开发在具有多个复杂源的情况下的运行模式分析的新方法，例如旋转机械。该项目将获得缩放的振型以及独立的缩放信号源。主要应用之一将是通过对强迫函数进行单独的比例估计来改善机器的预测性，从而更容易找到单调倾向于故障的故障参数，从而极大地提高对剩余可用设备寿命的估计。该应用程序的另一个好处是，如果源和模式模型都进行了缩放，则能够预测来自机器或对象的总体噪声辐射。

This project aims to develop new methods of operational modal analysis in situations with multiple complex sources, such as rotating machines. The project will obtain scaled mode shapes as well as separated scaled sources. One of the main applications will be to improve the prognostics of machines by having separated scaled estimates of the forcing functions to make it easier to find fault parameters which trend monotonically towards failure, and thus greatly improve the estimates of remaining useful equipment life. An additional benefit of the application will be the ability to predict overall noise radiation from a machine or object if both the sources and modal models are scaled.