[1]陈凡,郭玉荣.基于AUKF的框架结构离线模型更新混合试验方法[J].地震工程与工程振动,2020,40(01):162-170.[doi:10.13197/j.eeev.2020.01.162.chenf.016]
 CHEN Fan,GUO Yurong.Adaptive unscented kalman filter based off-line model updating hybrid simulation of frame structures[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2020,40(01):162-170.[doi:10.13197/j.eeev.2020.01.162.chenf.016]
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基于AUKF的框架结构离线模型更新混合试验方法
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《地震工程与工程振动》[ISSN:/CN:]

卷:
40
期数:
2020年01
页码:
162-170
栏目:
论文
出版日期:
2020-05-30

文章信息/Info

Title:
Adaptive unscented kalman filter based off-line model updating hybrid simulation of frame structures
作者:
陈凡1 郭玉荣1
1. 湖南大学 土木工程学院, 湖南 长沙 410082;
2. 建筑安全与节能教育部重点实验室, 湖南 长沙 410082
Author(s):
CHEN Fan1 GUO Yurong1
1. School of Civil Engineering, Hunan University, Changsha 410082 China;
2. Key Laboratory of Building Safety and Energy Efficiency, Changsha 410082, China
关键词:
AUKF模型更新参数识别Bouc-Wen恢复力模型
Keywords:
AUKFmodel updatingparameter identificationBouc-Wen restoring force model
分类号:
TU317
DOI:
10.13197/j.eeev.2020.01.162.chenf.016
摘要:
模型更新混合试验在传统混合试验方法的基础上更新与试验构件具有相同恢复力特性的构件,扩展了混合试验方法的应用范围。本文旨在提高模型更新混合试验的精度,降低试验的成本并简化模型更新混合试验方法的流程。自适应UKF(AUKF)算法在传统UKF的基础上加入方差自适应模块,能够减轻初始参数设定对参数识别结果的影响,本文基于AUKF提出一种模型更新混合试验方法。对以Bouc-Wen为恢复力模型的防屈曲约束支撑(BRB)进行低周反复加载虚拟试验,通过Matlab编制AUKF算法程序进行参数识别,验证了AUKF算法的高效准确性。对一榀8层4跨带BRB的钢框架进行混合试验数值仿真,结果表明离线模型更新试验结果较在线模型更新更接近真实结果,且简化了试验流程。
Abstract:
The model updating hybrid test method update the components with the same restoring force characteristics as the test components on the basis of the traditional hybrid test method, and extends the application range of the hybrid test method. The main objective of this paper is to improve the accuracy of the model updating hybrid test, reduce the cost of the test and simplify the process of the model updating hybrid test method. The AUKF add the variance adaptive module based on the UKF, which can reduce the influence of the initial error on the parameter estimation. A new model updating hybrid test method base on AUKF was proposed. With Bouc-Wen model, OpenSees is used to simulate the hysteretic behavior of BRB subjected to low cyclic loading, and the AUKF algorithm program is compiled by MATLAB to identify the parameters, which verifies the high efficiency and accuracy of the AUKF algorithm. Virtual hybrid tests of an 8-story, 4-bay steel frame equipped with BRBs were conducted, which shows that the test results of off-line model updating method are closer to the real results than the online model updating test, and the test process is simplified.

参考文献/References:

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相似文献/References:

[1]王涛,吴斌.基于约束UKF模型更新的混合试验方法[J].地震工程与工程振动,2013,33(05):100.
 WANG Tao,WU Bin.Hybrid testing method based on model updating with constrained unscented Kalman filter[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2013,33(01):100.

备注/Memo

备注/Memo:
收稿日期:2019-04-10;改回日期:2019-07-17。
基金项目:国家自然科学基金项目(51878259,51468010);国家自然科学基金重大国际合作项目(51161120360)
作者简介:陈凡(1994-),男,硕士研究生,主要从事混合试验方法的研究.E-mail:chenfan9413@163.com
通讯作者:郭玉荣(1970-),男,教授,博士,主要从事建筑结构抗震和混合试验的研究.E-mail:yurongguo@hnu.edu.cn
更新日期/Last Update: 1900-01-01