渔船轴系扭振信号特征分析

Analysis of Torsional Vibration Signal Characteristics of Fishing Vessel Shaft

基于小波变换对渔船轴系扭振信号进行了分析。在ANSYS workbench中,建立渔船轴系仿真模型,并导出扭振数据,然后,用自相关函数定性地分析了扭振信号的基本特征,并基于小波变换对渔船轴系扭振信号进行了辨识。通过数据分析验证,所采用的方法可行,具有一定的实用价值。

Based on wavelet transform, the torsional vibration signal of fishing vessel shaft is analyzed. In the ANSYS workbench, the simulation model of the fishing vessel shaft is established and the torsional vibration data is exported, Then, the basic characteristics of the torsional vibration signal are analyzed qualitatively by the auto-correlation function, and the torsional vibration signal of the fishing vessel shaft is identified based on the wavelet transform. Through the data analysis, the method adopted in this paper is feasible and has certain practical value.