Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)
- Volume 4 Issue 2
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- Pages.167-175
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- 2001
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
Dynamic Reanalysis of Base-Isolated Systems Using a Perturbation Technique
섭동법에 의한 면진구조계의 동적 재해석
- Kim, Hee-duck (Dept. of Civil Engineering, Kyungiil University)
- 김희덕 (경일대학교 토목공학과)
- Received : 2001.02.09
- Accepted : 2001.05.14
- Published : 2001.05.31
Abstract
In this study, a general perturbation method is presented to reanalysis dynamic response of base-isolated systems. The perturbation is expanded to general order and which provide the formulation of perturbed solutions. in which eigensolutions of non-modified system are treated as unperturbed solutions. The accuracy of present method is tested using a 2-DOF system with isolator, where the stiffness and damping coefficients of isolator are changed, respectively, The reanalyzed eigensolutions and response using perturbed solutions are successfully approached to exact ones after just first perturbation. Supposing the practical criterion as