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根据工程结构损伤识别的特点,利用测试模态参数,确定了结构柔度矩阵并通过损伤前后柔度矩阵变化特点确定结构损伤位置,通过一个28自由度的桥梁结构的计算算例表明,该识别方法效果好,在工程应用中具有一定的实用价值。
According to the characteristics of damage identification of engineering structure, the structural flexibility matrix is determined by testing the modal parameters and the damage position of the structure is determined by the change of flexibility matrix before and after the damage. A calculation example of bridge structure with 28 degrees of freedom shows that this identification The method is effective and has certain practical value in engineering application.