Evaluation of Vibration Characteristics of an Existing Harbor Caisson Structure Using Tugboat Impact Tests and Modal Analysis SCIE SCOPUS

Cited 6 time in WEB OF SCIENCE Cited 6 time in Scopus
Title
Evaluation of Vibration Characteristics of an Existing Harbor Caisson Structure Using Tugboat Impact Tests and Modal Analysis
Author(s)
Yi, Jin-Hak; Park, Woo-Sun; Lee, So-Young; Huynh, Thanh-Canh; Kim, Jeong-Tae; Seo, Chun-Kyo
KIOST Author(s)
Yi, Jin Hak(이진학)Park, Woo Sun(박우선)
Publication Year
2013
Abstract
Ambient and forced vibration tests are proposed to evaluate dynamic characteristics of a caisson-type breakwater, including natural frequencies and modal damping ratios. The feasibility of a numerical analysis model with fluid-structure-soil interaction effects, which play an important role in evaluating structural performance and safety, was investigated by comparing the numerical results with experimental results. The Oryukdo breakwater in Busan, Republic of Korea, was employed as the target structure. This breakwater was once heightened by installing additional parapet structures of about 4 m tall to improve the harbor tranquility in 2005. Vibration tests were carried out in 2000 (before heightening) and in 2011 (after heightening). Most caissons were tested in the first test, while only one caisson was tested in 2011. It was found that natural frequencies were reduced by 1.7%-4.3% after heightening, and similar results were observed from the numerical analysis. It was also found that forced vibration tests can yield more reasonable results than ambient vibration tests. Even though there is some discrepancy between experimental and numerical results, numerical analysis can be carried out to analyze dynamic characteristics and evaluate structural performance and safety.
ISSN
1550-1329
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3341
DOI
10.1155/2013/806482
Bibliographic Citation
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, 2013
Publisher
HINDAWI PUBLISHING CORPORATION
Type
Article
Language
English
Document Type
Article
Publisher
HINDAWI PUBLISHING CORPORATION
Related Researcher
Research Interests

Ocean Energy-Tidal Current Energy Converter System,Infrastructure Management-Structural Health Monitoring,Offshore Wind,해양에너지-조류발전시스템,시설물 유지관리-구조건전성 평가,해상풍력

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse