Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Implicit Time Integration Scheme for Real-Time Hybrid Test System

실시간 하이브리드 실험 시스템을 위한 Implicit 시간적분법

  • Published : 2006.10.30
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Abstract

The Real-Time Hybrid Test system presented in this paper is based on the pseudodynamic test method, and it combines physical testing with model-based simulation. The system is designed to achieve a rate of loading that is significantly higher than that of a conventional pseudodynamic test approaching the real-time response of a structure subjected to earthquake loads. To provide robust computation environment for the analysis of many degree-of-freedom structures, the system adopts an implicit time integration scheme in the model-based simulation. This paper presents an overview of the developed system and numerical simulations that were conducted to evaluate the performance of the computation scheme adopted here. Results of these studies have demonstrated the good performance of the computation scheme for real-time multiple-degree-of-freedom tests.

이 논문에서 소개되는 실시간 하이브리드 실험 시스템은 유사동적실험법을 근거로 하고 있으며, 실제 실험과수학적 모델을 이용한 수치해석을 결합한 실험법이다. 이 시스템은 종래의 유사동적해석법에 비해 지진하중을 받는 구조물의 실시간 반응에 근접하는 현저히 높은 하중재하 속도를 고려할 수 있도록 설계되었다. 또한 다자유도 구조물에 대해 안정적인 해석환경을 제공하기 위해 이 시스템은 implicit 시간적분법을 이용하여 수치해석을 수행한다. 이 논문은 연구를 통해 개발된 시스템의 전반적인 개요와 구성요소 그리고 이 시스템에서 사용하는 수치 해석법의 성능을 평가하기 위해 수행된 수치해석을 소개한다. 연구 결과 개발된 시스템에 적용된 수치해석법은 성능이 매우 우수하다는 것이 증명되었다.

Keywords

References

  1. Shing, PB and Mahin, SA., 'Experimental error propagation in pseudodynamic testing,' Report No. UCB/EERC-83/12, Earthquake Engineering Research Center, University of California, Berkeley, June, 1983
  2. Nakashima, M. and Kato, H., 'Experimental error growth behavior and error growth control in on-line computer test control method,' BRl Research Paper No. 123, Building  Research Institute, Ministry of Construction, Japan, 1987
  3. Mahin, S.A. and Shing, P.B., 'Pseudodynamic method for seismic testing,' Journal of Structural Engineering (ASCE), Vol. 111, 1985, pp. 1482-1503 https://doi.org/10.1061/(ASCE)0733-9445(1985)111:7(1482)
  4. Takanashi, K. and Nakashima, M., 'Japanese activities on on-line testing,' Journal of Engineering Mechanics (ASCE), Vol. 113, 1987, pp. 1014-1032
  5. Nakashima, M., Kaminosomo, T. and Ishida, M, 'Integration techniques for substructure pseudodynamic test,' Proceedings of the 4th U.S. National Conference on Earthquake Engineering, Palm Springs, CA, 1990, pp. 515-524
  6. Jung, R.- Y., 'Development of real-time hybrid test system,' Doctoral Thesis, University of Colorado at Boulder, 2005
  7. Jung, R.-Y. and Shing, P.B., 'Performance evaluation of a real-time pseudodynamic test system,' Earthquake Engineering and Structural Dynamics, Vol. 35, No.7, 2006, pp. 789-810 https://doi.org/10.1002/eqe.547
  8. Hilber, H.M, Hughes, T.J.R and Taylor, R.L., 'Improved numerical dissipation for time integration algorithms in structural dynamics,' Earthquake Engineering and Strnctural Dynamics, Vol. 5, 1977, pp. 283-292 https://doi.org/10.1002/eqe.4290050306
  9. MathWorks, xPC Target user's guide; for use with real-time workshop, The MathWorks Inc., Natick, MA, 2001
  10. Shing, P.B, Vannan, M.T and Carter, E, 'Implicit time integration for pseudodynamic tests,' Earthquake Engineering and Structural Dynamics, Vol. 20, No.6, 1991, pp. 551-576 https://doi.org/10.1002/eqe.4290200605