摘要
讨论了框架结构基准有限元动力分析模型,给出了基于振动试验结果建立钢结构框架基准有限元模型的步骤.首先讨论了优化算法的基本原理,随后介绍了优化算法中的两种基本算法,零阶算法和一阶算法,最后通过一个钢结构框架的实例,验证了基于优化算法建立有限元基准模型的有效性.经振动试验结果验证的框架结构有限元基准模型,反映了框架结构的真实动力行为,可作为该框架结构各种复杂响应分析、健康监测以及损伤识别的基准.
In this paper, dynamic baseline finite element model of frame structure is discussed, and the procedure of how to construct the baseline finite element model based on vibration testing results is presented. The basic principle of optimization algorithm is introduced firstly,the two algorithms,zero-order algorithm and first-order algorithm, are studied secondly, in the end through an example of steel frame, the efficiency of construction of baseline finite element model based on optimization algorithm is validated. The baseline finite element model validated by vibration testing reflects the actual dynamic behavior,and it can be used as the baseline of the frame structure for complex response analysis,health monitoring and damage identification.
出处
《武汉工程大学学报》
CAS
2009年第9期23-26,共4页
Journal of Wuhan Institute of Technology
基金
武汉工程大学科学研究基金(No.13095081)
关键词
基准有限元模型
优化算法
框架结构
损伤识别
baseline finite element model
optimization algorithm
frame structure
damage identification
