Proper orthogonal decomposition 기법을 이용한 세장한 구조물의 모드인자 파악

• 영문명: Modal identification of a slender structure using the proper orthogonal decomposition method
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 함희정(Ham Hee Jung)
• 간행물 정보: 『산업기술연구』vol.28, 135~141쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2008.09.30

영문 초록

In this paper, the Proper Orthogonal Decomposition (POD) method, which is a statistical analysis technique to find the modal characteristics of a structure, is adapted to identify the modal parameters of a tall chimney structure. A wind force time history, which is applied to the structure, is obtained by a wind tunnel test of a scale down model. The POD method is applied on the wind force induced responses of the structure, and the t겨e normal modes of the structure can be obtained. The modal parameters including, natural frequency, mode shape, damping ratio and kinetic energy of the structure can be estimated accurately. With these results, it may be concluded that the POD method can be applied to obtain accurate modal parameters from the wind-induced building responses.

목차

Abstract

1. 서론

2. 정규 모드와 POD 모드의 관계

3. 굴뚝 구조물에의 적용

4. 결론

참고문헌

키워드

POD 기법 모드인자 풍동실험 세장한 구조물 Proper Orthogonal Decomposition (POD) Modal Identification Wind Tunnel Test Slender Structure