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本文用交叉梁系模型与精确模型进行了计算分析和对比,给出了交叉梁法的适用范围,提出了结构分类的概念和振型截取的建议。
In this paper, the cross-beam model and the exact model are used to calculate and contrast. The applicable scope of the cross-beam method is given. The concept of structure classification and the advice of vibration model interception are proposed.