裂纹梁的弹塑性动态断裂 关键词 动态断裂；裂纹梁；弹塑性线弹簧模型[gap=673]Key words dynamic fracture, cracked beam, elasto-plastic line-spring model
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The work trys to seek an intelligentized method for model urdating. Differential evolution algorithm is used to identify damage Location and damage depth of cracked beam in the meanwhile.
本文试图谋求一种智能的模型修正方法,利用微分差异演化算法对裂纹梁的损伤位置和损伤程度两个参数同时进行识别研究。
参考来源 - 裂纹梁的结构建模与损伤识别方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文研究了含裂纹梁的动力特性。
In this paper, the dynamic behaviour of a beam with cracks is studied.
基于动能密度和弯曲弹簧模型，提出了裂纹梁损伤识别两步法。
A two-step damage identification method of cracked beams is proposed based on the kinetic energy density and the bending spring model.
将计算单裂纹结构基频的方法推广到求含多处裂纹梁弯曲振动的近似基频。
An approximate method of calculating the fundamental frequency of bending vibrations of multi-cracked beams is proposed on the basis of a modification of the method for single-cracked structures.
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