动态信号激励梁的数据处理方法探讨

A Discussion on Data Processing Methods of Dynamic Signal Excitation Beams

针对动态信号激励梁的应用研究,提出了图形法和4种实验数据处理方法。重点介绍了4种实验数据处理方法,给出了每种方法的数据处理方式,进行了公式推导,并定义了影响指标,运用Matlab软件编制了计算程序。将其应用于动态信号激励梁的实验数据处理,分析对比了4种方法处理实验数据后的结果,总结出最优实验数据处理方法是导纳协方差法,概括了相关的结论,并对其应用进行了展望。

For the application of dynamic signal excitation beams,a graphic method and four experimental data processing methods were proposed.The four experimental data processing methods were introduced in detail.The data processing ways of each method were given.The impact indicators were defined,and the calculation programs were compiled with Matlab software.The results of processing experimental data by applying the four methods to dynamic signal excitation beams were analyzed and compared.It showed that the admittance covariance method was the best.Related conclusions were summarized,and its application was forecasted.