中国机械工程2011，Vol.22Issue(22)：2754-2757,4.
焊接钢管的模态参数目标建模及模型修正
Modeling and Model Amendment for Welded Steel Tube with Modal Parameters Object
摘要
Abstract
Modeling of the heat affected zone in welding is a difficult problem in dynamic analysis, while the consistent of modal parameters is a major objective of modeling and model amendment. The two key issues herein are the same approximation of the model and analysis of the sensitive parameters in model amendment. With the scale samples of a welded steel pipe for the object and experimental test results provided, the simulating process was studied so that the model can approach the two test targets, namely the natural frequencies and modes of the structure. And then the main sensitive parameters during the model amendment were analyzed. The results show that the weld thickness of the welded steel pipe, the elastic modulus of the welding line and heat affected zone should he considered as the main parameters in model amendment.关键词
焊接结构/目标模拟/模型修正/模型参数敏感性Key words
welded structure/objective simulation/model amendment/sensitive model parameter分类
建筑与水利引用本文复制引用
李永军,马立元,李世龙,王天辉..焊接钢管的模态参数目标建模及模型修正[J].中国机械工程,2011,22(22):2754-2757,4.
