摘要
本文分析了振动台可动系统自振频率对结构模型动力试验的影响,介绍了用试验模态分析方法识别振动台的模态参数和共振试验、结构地震反应试验时振动台的响应特性。并对振动台的动力特性进行了综合分析和评述。
The effect of natural frequency of the vibration table on the dynamic experiment of structure model is analyzed in this paper, and then, mode parameters for the vibration table recognized by the use of experiment mode analysis method are introduced. This paper also discusses the response behavior of the vibration table with resonance test and earthquake response test. Finaly, the dynamic behav ior of the vibration table is evaluated.
关键词
地震
振动台
动力特性
模态分析
earthquake, vibration talbe, dynamic behavior, modal analysis, transfer function.
