Proceedings of the Computational Structural Engineering Institute Conference (한국전산구조공학회:학술대회논문집)
- 1990.10a
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- Pages.79-84
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- 1990
IDENTIFICATION OF MODAL PARAMETERS BY SEQUENTIAL PREDICTION ERROR METHOD
순차적 예측오차 방법에 의한 구조물의 모우드 계수 추정
- Lee, Chang-Guen (Department of Civil Engineering, KAIST) ;
- Yun, Chung-Bang (Professor, Department of Civil Engineering, KAIST)
- Published : 1990.10.01
Abstract
The modal parameter estimations of linear multi-degree-of-freedom structural dynamic systems are carried out in time domain. For this purpose, the equation of motion is transformed into the autoregressive and moving average model with auxiliary stochastic input (ARMAX) model. The parameters of the ARMAX model are estimated by using the sequential prediction error method. Then, the modal parameters of the system are obtained thereafter. Experimental results are given for a 3-story building model subject to ground exitations.
Keywords