地基-结构相互作用系统的时域参数识别

基金项目: 国家自然科学基金资助项目(59978038)

Time Domain Parameters Identification of Foundation-Structure Interaction System

摘要: 提出地基-结构相互作用系统的时域参数识别方法．在建立地基-结构相互作用的计算模式和运动方程的基础上，运用扩展的卡尔曼滤波技术，将相互作用系统中的参数作为增加的状态变量，建立了该系统的时域参数识别方法．并依据大型振动台条件下的层状地基-贮仓结构相互作用系统的模型试验数据，实施了地基-结构相互作用系统时域参数识别的全过程．计算结果表明，该方法产生良好的参数估计．
- 地基-结构 /
- 相互作用系统 /
- 时域参数识别
Abstract: The time domain parameter identification method of the foundation-structure interaction system is presented. On the basis of building the computation mode and the motion equation of the foundation-structure interaction system, the system parameter identification method was established by using the Extended Kalman Filter technique and taking the unknown parameters in the system as the augment state variables. And the time parameter identification process of the foundation-structure interaction system was implemented by using the data of the layer foundation-storehouse interaction system model test on the large vibration platform. The computation result shows that the established parameter identification method can induce good parameter estimation.
- foundation-structure /
- interaction system /
- time domain parameter identification

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