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利用输入未知条件下结构模态参数识别的方法 ,通过仿真算例分析了测试噪声对识别的影响 ,最后利用同济大学图书馆地脉动加速度反应实测数据 ,对其模态参数进行了识别 ,得出了一些结论。
The effect of test noise on the recognition is analyzed by simulation example using the method of structural modal parameter identification under unknown input conditions. Finally, the measured data of ground motions acceleration response in Tongji University Library are used to identify the modal parameters. Some conclusions.