Mass perturbation influence method for dynamic analysis of offshore structures
- Authors
- Cho, KN
- Issue Date
- Apr-2002
- Publisher
- TECHNO-PRESS
- Keywords
- dynamic response; offshore structure; mass perturbation; modal analysis
- Citation
- STRUCTURAL ENGINEERING AND MECHANICS, v.13, no.4, pp.429 - 436
- Journal Title
- STRUCTURAL ENGINEERING AND MECHANICS
- Volume
- 13
- Number
- 4
- Start Page
- 429
- End Page
- 436
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/26839
- DOI
- 10.12989/sem.2002.13.4.429
- ISSN
- 1225-4568
- Abstract
- The current work presents an analysis algorithm for the modal analysis for the dynamic behaviors of offshore structures with concepts of mass perturbation influence term. The mass perturbation concept by using the term, presented in this paper offers an efficient solution procedure for dynamical response problems of offshore structures. The basis of the proposed method is the mass perturbation influence concepts associated with natural frequencies and mode shapes and mass properties of the given structure. The mathematical formulation of the mass perturbation influence method is described. New solution procedures for dynamics analysis are developed, followed by illustrative example problems, which deal with the effectiveness of the new solution procedures for the dynamic analysis of offshore structures. The solution procedures presented herein is compact and computationally simple.
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