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讨论了在已知梁板的质量分布、特征振动频率和模态情况下,梁板广义刚度分布的计算问题。以便为用实测模态参数诊断故障的位置及其严重程度提供参考。采用的方法是基于一般的线弹性振动理论,因此可推广到其它形式的结构。
The calculation of the generalized stiffness distribution of the slab is discussed under the condition of known mass distribution, characteristic vibration frequency and mode of the slab. In order to use the measured modal parameters to diagnose the location of the fault and its severity provide a reference. The method used is based on the general theory of linear elastic vibrations and therefore can be generalized to other forms of structure.