[1]黄亮,郭彤,徐伟杰.实时混合模拟误差的理论分析及试验验证[J].东南大学学报(自然科学版),2016,46(5):1045-1050.[doi:10.3969/j.issn.1001-0505.2016.05.025]
　Huang Liang,Guo Tong,Xu Weijie.Theoretical analysis and experimental verification of errors in real-time hybrid simulation[J].Journal of Southeast University (Natural Science Edition),2016,46(5):1045-1050.[doi:10.3969/j.issn.1001-0505.2016.05.025]
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实时混合模拟误差的理论分析及试验验证()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第5期
页码:
1045-1050
栏目:
土木工程
出版日期:
2016-09-20

文章信息/Info

Title:
Theoretical analysis and experimental verification of errors in real-time hybrid simulation
作者:
黄亮; 郭彤; 徐伟杰
东南大学混凝土及预应力混凝土结构教育部重点试验室, 南京210096
Author(s):
Huang Liang;  Guo Tong;  Xu Weijie
Key Laboratory of Concrete and Pre-stressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
实时混合模拟;  时滞微分方程;  误差分析;  幅值比率误差;  时滞
Keywords:
real-time hybrid simulation;  time delay differential equation;  error analysis;  amplitude ratio error;  time delay
分类号:
TU317.2
DOI:
10.3969/j.issn.1001-0505.2016.05.025
摘要:
为研究实时混合模拟中幅值比率误差和时滞对试验结果的影响,选用弹簧作为试验子结构进行研究,观测和分析了测量位移与计算位移之间的微小误差.假定在试验过程中幅值比率误差和时滞处处相等,采用时滞微分方程建立了实时混合模拟的数学模型,给出了微时滞下自由振动和简谐振动的近似解.结果表明,理论分析结果与试验结果较为相似,说明所提数学模型具有合理性和准确性.误差会导致作用在试验子结构上的外力失真,并影响了数值子结构的位移峰值和稳态振幅.理论分析结果与试验结果之间的微小差异主要受假设简化、测量噪声、累积误差等因素的影响.
Abstract:
To investigate the influences of the amplitude ratio error and the time delay on the results in real-time hybrid simulation(RTHS), an experiment, taking a spring as the experimental substructure, was conducted and the micro errors between the measured displacements and the calculated displacements were observed and analyzed. Assuming that the amplitude ratio error and the time delay were constant in the experiment, a RTHS mathematical model was developed by using the time delay differential equations, and the approximate solutions of the micro time delay formulas in free and simple harmonic vibration were derived, respectively. The results show that theoretical results and the experimental results are similar, proving the rationality and the accuracy of the mathematical model. The errors distort the force acting on the experimental substructure, and affect the peak displacement and the steady amplitude of the numerical substructure. The micro errors between the theoretical results and the experimental results are affected by simplified assumption, measured noise, accumulative errors and so on.

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备注/Memo

备注/Memo:
收稿日期: 2015-12-28.
作者简介: 黄亮(1986—),男,博士生; 郭彤(联系人),男,博士,教授,博士生导师,guotong@seu.edu.cn.
基金项目: 江苏高校优势学科建设工程资助项目(1105007002).
引用本文: 黄亮,郭彤,徐伟杰.实时混合模拟误差的理论分析及试验验证[J].东南大学学报(自然科学版),2016,46(5):1045-1050. DOI:10.3969/j.issn.1001-0505.2016.05.025.
更新日期/Last Update: 2016-09-20