迭代混合实验收敛速度与收敛精度的数值模拟  

Numerical simulation of convergence speed and convergence accuracy of iterative hybrid test

作　　者：王涛 郑欢 王贞 许国山[3] Wang Tao;Zheng Huan;Wang Zhen;Xu Guoshan(School of Architecture & Civil Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China;School of Civil Engineering & Architecture, Wuhan University of Technology, Wuhan 430070, China;School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China)

机构地区：[1]黑龙江科技大学建筑工程学院,哈尔滨150022 [2]武汉理工大学土木与建筑学院,武汉430070 [3]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《黑龙江科技大学学报》2021年第3期378-383,共6页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金项目(52078398,51978213)。

摘　　要：为探究单层框架结构阻尼比与物理子结构数值模型精度对迭代混合实验收敛性的影响。以安装黏滞阻尼器的单层框架为研究对象,开展了数值模拟实验。实验结果表明:结构阻尼比分别为0.5%、1.0%、1.5%、2.0%、2.5%时,迭代100轮的绝对误差最大值分别为1.37、51.22、145.44、267.62、397.78 mm,随着结构阻尼比的增大,物理子结构位移响应的绝对误差不断增加,迭代收敛精度降低;模型精度分别为0、20%、40%、60%、80%时,绝对误差最大值分别为127.94、102.98、92.75、76.45和51.22 mm,随模型精度的提高,迭代误差降低,迭代收敛精度提高。This paper is aimed at exploring the influence of damping ratio of single-layer frame structure and accuracy of physical substructure numerical model on convergence of iterative hybrid test.The study is focused on the numerical simulation experiments by taking the single-layer frame with viscous damper as the research object.The results show that in the presence of the damping ratio of the structure of 0.5%,1.0%,1.5%,2.0%and 2.5%respectively,100 iterations have the maximum absolute errors of 1.37,51.22,145.44,267.62 and 397.78 mm respectively,accompanied by an increase in the absolute error of displacement response of physical substructure and a decrease in the convergence accuracy of iteration along with the increase of structural damping ratio;and the presence of the model accuracy of 0,20%,40%,60%and 80%,the maximum absolute errors are 127.94,102.98,92.75,76.45 and 51.22 mm respectively,followed by decreases in the iterative error and improvements in the iterative convergence accuracy,along with the improvement of the model accuracy.

关 键 词：迭代混合实验 收敛速度 结构阻尼比 

分 类 号：TU317[建筑科学—结构工程]