【摘要】 论文改进和完善了一种广义频率响应函数(GFRF)的辨识算法,并依此提出了一种基于非线性频谱分析的故障预报方法。最后利用该方法成功地对某型直升机并联电动舵机进行了故障预报。工程应用实例证明了该预报方法的有效性。另外,该方法计算量小,实时性强,适合于在线故障预报,为早期故障预报的研究提供了一种新思路。更多还原

【Abstract】 A fault forecasting method based on nonlinear spectral analysis was proposed a nd applied into the fault forecasting of certain helicopter’s electric rudders. The actual application indicates that this fault forecasting method is effective in fault forecasting.This method is suitable for online fault forecasting and supplies a new thought for the study of fault forecasting.更多还原