全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
工程力学  2014 

实时混合模拟试验作动器位移追踪的频域评价方法

DOI: 10.6052/j.issn.1000-4750.2012.11.0871, PP. 171-177

Keywords: 实时混合模拟,频域,作动器位移追踪,评价方法,试验验证

Full-Text   Cite this paper   Add to My Lib

Abstract:

实时混合模拟是一种新型而有效的抗震试验方法。其中,作动器作为维系试验子结构和数值子结构的边界条件,其对指令位移的追踪直接影响到试验的准确性,而现有的作动器追踪精度的评价方法均基于时域分析。为克服时域评价方法的缺陷,该文提出了一种作动器追踪精度的基于傅里叶变换的频域评价方法,其优点是仅需试验的输入和输出,且能同时反映输入和输出的时间误差(时滞)和幅值误差。为克服快速傅里叶变换以及频谱泄漏对分析结果的影响,提出了一种数据加窗的处理方法。在一个由作动器、阻尼器和反力装置构成的实时混合模拟试验系统中,分别输入已知的正弦波和随机波并进行频域分析,验证了该频域评价方法的有效性。

References

[1]  Nakashima M, Kato H and Takaoka E. Development of real-time pseudodynamic testing [J]. Earthquake Engineering and Structural Dynamics, 1992, 21(1): 79―92.
[2]  Wu B, Bao H, Ou J, Tian S. Stability and accuracy analysis of central difference method for real-time substructure testing [J]. Earthquake Engineering and Structural Dynamics, 2005, 34(7): 705―718.
[3]  Chen C, Ricles J M. Real-time hybrid testing using an unconditionally stable explicit integration algorithm [J]. Earthquake Engineering and Structural Dynamics, 2009, 38(1): 23―44.
[4]  Chen C, Ricles J M. Analysis of actuator delay compensation methods for real-time testing [J]. Engineering Structures, 2009, 31(11): 2643―2655.
[5]  Chen C, Ricles J M. Development of direct integration algorithms using discrete control theory [J]. Journal of Engineering Mechanics, 2008; 134(8): 676―683.
[6]  Horiuchi T, Inoue M, Konno T, Namita. Y. Real-time hybrid experimental system with actuator delay compensation and its application to a piping system with energy absorber [J]. Earthquake Engineering and Structural Dynamics, 1999, 28(10): 1121―1141.
[7]  Chen C. Development and numerical simulation of hybrid effective force testing method [D]. Department of Civil and Environmental Engineering, Lehigh University, 2007.
[8]  王向英, 吴斌, 王倩颖. 实时子结构实验的滑动模态控制[J]. 工程力学, 2007, 24(6): 174―179.
[9]  Wang Xiangying, Wu Bin, Wang Qianying. Sliding mode control of real-time substructure testing [J]. Engineering Mechanics, 2007, 24(6): 174―179. (in Chinese)
[10]  许国山, 吴斌. 采用比例-积分控制的实时子结构试验等效力控制方法[J]. 工程力学, 2009, 26(9): 251―256.
[11]  Xu Guoshan, Wu Bin. Equivalent force control method with proportional integral contrler for real-time substructure testing [J]. Engineering Mechanics, 2009, 26(9): 251―256. (in Chinese)
[12]  Mosqueda G, Stojadinovic B, Mahin SA. Real-time error monitoring for hybrid simulation. Part I: methodology and experimental verification [J]. Journal of Structural Engineering, 2007, 133(8): 1100―1108.
[13]  Mosqueda G, Stojadinovic B, Mahin S A. Real-time error monitoring for hybrid simulation. Part II: structural response modification due to errors [J]. Journal of Structural Engineering, 2007, 133(8): 1109―1117.
[14]  Chen C, Ricles J M, Guo T. Minimizing actuator tracking and energy errors for real-time hybrid simulation through a new adaptive compensation scheme [C]. 20th Analysis & Computation Specialty Conference: 335―345.
[15]  王济, 胡晓. MATLAB在振动信号处理中的应用[M]. 北京: 中国水利水电出版社; 知识产权出版社, 2006: 124―130.
[16]  Wang Ji, Hu Xiao. The use of the MATLAB in vibration signal processing [M]. Beijing: China Waterpub Press; Intellectual Property Press, 2006: 124―130. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133