结构有限元离散化模型的响应相关检验方法  

Correlation Verification Technique for Responses of Finite Element Model of Structure

作　　者：王雪[1] 方珉[1] 

机构地区：[1]南京航空航天大学机电工程学院

出　　处：《振动工程学报》1999年第1期85-90,共6页Journal of Vibration Engineering

摘　　要：应用时间序列分析理论，在时域内建立了有限元计算响应与试验响应的相关分析数学模型。通过悬臂梁试验和底部固定半开口圆桶试验的实际相关分析，验证了该响应相关分析理论的正确性和实用性，从而为有限元离散化模型的应用可靠性判断及模型修正提供了一种简单适用的方法。Based on the study of the previous comprehensive application of finite element analysis method and experimental modal analysis technique,the time domain mathematical model of correlation analysis for the responses of the experiment and the corresponding finite element model is established with the time series analysis theory.The correctness and feasibility of the analysis theory proposed in this paper is verified by the correlation analysis of the clamped beam and the lidless bucket which is fixed at its bottom.As a result,we provide an applicable and simple analysis method of the applied correlation determination of the finite element model and its modification.

关 键 词：有限元 模态分析 相关分析 响应 结构动力学 

分 类 号：TB123[理学—工程力学] TB115[理学—力学]