Research in parameter α of inverse compensation for real-time hybrid simulation

被引：0
|
作者：
Xu W.-J. [1 ]
Guo T. [1 ]
Chen C. [2 ]
机构：
[1] Key Laboratory of Concrete and Prestressed Concrete Structures, Ministry of Education Southeast University, Nanjing, 210096, Jiangsu
[2] San Francisco State University, San Francisco
来源：
Guo, Tong (guotong@seu.edu.cn) | 2016年 / Tsinghua University卷 / 33期
关键词：
Actuator control; Discrete transfer function; Frequency-domain evaluation index; Inverse compensation method; Real-time hybrid simulation;
D O I：
10.6052/j.issn.1000-4750.2014.12.1075
中图分类号：
学科分类号：
摘要：
Delay compensation is one of the important components in ensuring the effectiveness of real-time hybrid simulation. Although the inverse compensation method is easy and effective, the delay may often be under-compensated. In this paper, the discrete transfer function of the inverse compensation method is analyzed in the frequency domain, and it is found that the delay compensated by the inverse compensation method has a close relationship with the predicted delay and the frequency of the signal. The compensated delay can be close to the predicted delay when the frequency of the signal is small. Based on the frequency-domain evaluation index, numerical simulation and predefined-displacement tests were conducted, which further prove that there is about 10% difference between α and compensated delay. According to existing real-time hybrid simulation data, it is recommended that the parameter α used in the inverse compensation method should be 1.1 times the predicted value, when the actuator delay is between 10 ms and 30 ms and the frequency is between 0.5 Hz and 3.0 Hz. © 2016, Engineering Mechanics Press. All right reserved.
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页码：61 / 67
页数：6
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共 11 条
  • [1] Nakashima M., Kato H., Takaoka E., Development of real-time pseudodynamic testing, Earthquake Engineering and Structural Dynamics, 21, 1, pp. 79-92, (1992)
  • [2] Wang X., Wu B., Wang Q., Sliding mode control of real-time substructure testing, Engineering Mechanics, 24, 6, pp. 174-179, (2007)
  • [3] Wu B., Bao H., Ou J., Tian S., Stability and accuracy analysis of central difference method for real-time substructure testing, Earthquake Engineering and Structural Dynamics, 34, 7, pp. 705-718, (2005)
  • [4] Xu G., Wu B., Equivalent force control method with proportional integral controller for real-time substructure testing, Engineering Mechanics, 26, 9, pp. 251-256, (2009)
  • [5] Chen C., Ricles J.M., Real-time hybrid testing using an unconditionally stable explicit integration algorithm, Earthquake Engineering and Structural Dynamics, 38, 1, pp. 23-44, (2009)
  • [6] Carrion J.E., Spencer B.F., Phillips B.M., Real-time hybrid simulation for structural control performance assessment, Earthquake Engineering and Engineering Vibration, 8, 4, pp. 481-492, (2009)
  • [7] Chen C., Ricles J.M., Stability analysis of SDOF real-time hybrid testing systems with explicit integration algorithms and actuator delay, Earthquake Engineering and Structural Dynamics, 37, 4, pp. 597-613, (2008)
  • [8] Chen C., Ricles J.M., Tracking error-based servo-hydraulic actuator adaptive compensation for real-time hybrid simulation, Journal of Structural Engineering, 136, 4, pp. 432-440, (2010)
  • [9] Chen C., Ricles J.M., Analysis of actuator delay compensation methods for real-time testing, Engineering Structures, 31, 11, pp. 2643-2655, (2009)
  • [10] Guo T., Xu W., Chen C., Frequency-domain tracking assessment for servo-hydraulic actuator in real-time hybrid simulation, Engineering Mechanics, 31, 4, pp. 171-177, (2014)
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