模型结构振动台试验的数据处理

Data processing for shaking table test of model structure

结合某试验特点,编制MATLAB语言程序对振动台获得的原始数据进行处理。根据白噪声扫频结果获得模型结构的频率等动力特性,以及对地震波作用后的模型结构反应进行滤波和积分处理,获得模型结构的加速度和位移数据。通过对比滤波、积分处理后的位移和实测的位移,看出两者结果基本一致,说明数据处理方法正确,适用于其他振动台试验数据处理。

In combination with the characteristic of a test,the MATLAB language was designed to deal with the original data of shaking table test. According to the results of the white noise frequency sweeping, the dynamic characteristics of the model structure such as frequency were obtained, and filtering and integral methods were used to deal with the model structure reactions after seismic wave action to obtain the acceleration and displacement data of the model structure. By comparing the displacement after filtering and integral process with the measured displacement, both results turn out to be almost similar, this indicates that the data processing method is correct and it can be applied to data processing of other shaking table tests.