Application of Nonlinearity Fitting Order Analysis Arithmetic in Nonstationary Signals Analysis

摘要：

In order to solve vibration signals inaccurate character in gearbox during nonstationary course with traditional computed order analysis, the computed order analysis is improved and the nonlinearity fitting order analysis method is explored. Firstly, the nonstationary vibration signals in the gearbox are sampled at constant time increments in timedomain and then the data are resampled with nonlinearity fitting order analysis arithmetic. The data at constant angle increments in angle-domain are obtained Therefore, the instantaneously signals in time-domain is changed into pseudo-stationary ones in angle-domain. At last, the signals in angle-domain are analyzed and the nonlinearity fitting order spectrum is obtained. The outcome shows that the precision of the data resampled has been enhanced with nonlinearity fitting order analysis than with the traditional computed order analysis. The nonstationary signals in time-domain are translated into pseudo-stationary ones in angle-domain. It is trenchancy supplement for traditional computed order analysis and has more amplitude appliance foreground.

关键词： nonlinearity fitting order analysis computed order tracking nonstationary siangls gearboz

作者: Haiying Kang Yanjie Qi Wen Yan Haiqi Zheng

作者单位: Department of Guns Engineering,Shijiazhuang Mechanical Engineering College,Hebei Shijiazhuang,China Dept.of Basic Courses,Xuzhou Air Force College,Xuzhou R,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 4118-4121

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）