- 基底输入未知条件下质量不确定结构损伤识别
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- 论文类型： 期刊论文
- 发表时间： 2022-06-29
- 发表刊物： 大连理工大学学报
- 所属单位： 建设工程学部
- 期号： 2
- 页面范围： 239-242
- ISSN号： 1000-8608
- 摘要： A new time domain transferring method for damage identification of structures with mass uncertainty under unknown seismic input is developed, which can be applied to the damage identification of structures with unknown effects of surrounding soils, adjoining structures and unstructured components. The regularized stiffness and damping parameters are constructed and the corresponding damage identification formulae are derived in terms of regularized parameters. The temporary influence parameters and correlate parameters are introduced to avoid the effects of structural mass. The effects of mass uncertainty on damage identification are studied. Based on the proposed method, the structural damage can be directly identified from structure response and the seismic history can be obtained simultaneously. Numerical example indicates the accuracy and the effectiveness of the proposed method.
- 备注： 新增回溯数据
