文献类型：期刊文献

中文题名：面向桥梁工程的响应面技术在有限元模型修正中的应用探讨

英文题名：Research on Response Surface Technique for Bridge Engineering in Finite Element Model Correction

作者：张挣鑫 刘黔会 黄方林

第一作者：张挣鑫

机构：[1]贵州理工学院土木工程学院;[2]中南大学土木工程学院

第一机构：贵州理工学院土木工程学院

年份：2018

卷号：43

期号：4

起止页码：145-149

中文期刊名：公路工程

外文期刊名：Highway Engineering

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：贵州省自然科学基金(黔科合J字[2015]2062号)

语种：中文

中文关键词：模型修正;损伤失效;响应面技术

外文关键词：model correction;failure of damage;response surface technique

摘要：以某一桥梁模型为对象,基于响应面模型的损伤识别法对桥梁结构的模型进行优化求解,采用D最优设计进行桥梁结构模型修正,选择时域和频域特征参数作为拟合响应面输出。利用design expert 8.0软件进行方差分析,对参数进行显著性检验,剔除样无关变量,对剩余参数进行回归分析拟合二次多项式响应模型。研究结果表明:通过响应面技术对初始有限元模型进行修正,对比修正值与实测值的频率取值与实测值趋于一致,频率相对误差值在1%以内,挠度修正误差在2%以内,修正精度满足实际使用要求。
Taking a bridge model as an object,based on the response surface model of bridge structure damage identification method of model optimization solution,using D optimal design of bridge structure model updating,select the time domain and frequency domain feature parameters as output response surface fitting.The variance analysis was carried out by using the software design expert 8.0,and the parameters were tested statistically,the sample independent variables were excluded,and the residual parameters were analyzed to fit the quadratic polynomial response model.The results show that through the response surface technology to modify the initial finite element model,compare the revised and the frequency values and measured values of the measured values consistent,frequency relative error value is within 1%,the deflection correction error within 2%,correction precision meet the requirements of actual use.