... 模态界限 mode bound 模态边界 mode boundary 空腔支模态图(共振幅率与空腔大小关系图) mode chart， acvity ...
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考虑脱层壳的三种不同屈曲模态，分析了边界条件、脱层长度、深度对脱层壳屈曲载荷的影响；
Three difference buckling modes of delaminated shell were considered. The influence of boundary condition, length and depth of delamination on buckling load was analyzed.
不同边界条件和不同长径比呈现出不同的屈曲模态。
It is found that PTCSs with different LDR and boundary conditions have different buckling modes.
误差分析表明，如果模态试验结果具有足够的精度，用本文方法能够准确地实现结构边界支承刚度识别。
The error analysis proves that this method can realize the exact identification of the structure boundary support stiffness if the modal test results are of enough accuracy.
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