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非线性系统的吸引子及各类吸引子的功率谱特性对研究该系统的故障检测与诊断提供了十分重要的信息,基于功率谱分析和研究的非线性系统的故障诊断原理、功率谱分析方法作了详细的叙述,分析和研究的结果表明:基于功率谱分析的故障诊断系统特别适宜于吸引子易随参数变化的非线性系统.图1,参10.
The attractor of nonlinear system and the power spectral characteristics of various attractors provide very important information for the fault detection and diagnosis of this system. Based on the principle of fault diagnosis of nonlinear system with power spectrum analysis and research, the power spectrum analysis method The detailed description, analysis and research results show that the fault diagnosis system based on power spectrum analysis is especially suitable for the nonlinear system whose attractor is easy to change with the parameter.