Time domain calculation method based on hysteretic damping model

被引：0
|
作者：
Sun P.-X. [1 ]
Yang H. [1 ,2 ]
Zhao W.-T. [1 ]
Wang Z.-J. [1 ]
机构：
[1] School of Civil Engineering, Chongqing University, Chongqing
[2] Key Laboratory of New Technology for Construction of Cities in Mountain Area of the Ministry of Education, Chongqing University, Chongqing
来源：
Gongcheng Lixue/Engineering Mechanics | 2019年 / 36卷 / 06期
关键词：
Complex damping model; Frequency domain method; Hysteretic damping model; Numerical method; Time domain method;
D O I：
10.6052/j.issn.1000-4750.2018.05.0299
中图分类号：
学科分类号：
摘要：
The free vibration solution of a complex damping time domain motion equation contains divergent items which make the numerical results of the time domain divergent. Based on the frequency domain motion equation of a complex damping model, the hysteretic damping time domain motion equation can be obtained. According to the characteristics of a hysteretic damping model, the time domain theoretical calculation method of the hysteretic damping model is proposed based on the complex plane method and trigonometric series expression of earthquake acceleration records. It is assumed that the structural vibration response is a harmonic vibration response in a short time step. Based on the average acceleration method, the time domain numerical calculation method of the hysteretic damping model is proposed. The analysis results show that: compared with the time domain numerical method of a complex damping model, the two proposed methods can avoid the time domain divergence phenomena effectively. The time domain calculation results of the two proposed methods are approximately equal to the frequency domain calculation results of a complex damping model. The correctness of the two proposed methods is verified. © 2019, Engineering Mechanics Press. All right reserved.
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页码：13 / 20
页数：7
相关论文
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