서지주요정보
Vibration and power flow analysis for 3-D piping systems by wave approach = 파동접근법을 이용한 3차원 배관계의 진동 및 파워흐름 해석
서명 / 저자 Vibration and power flow analysis for 3-D piping systems by wave approach = 파동접근법을 이용한 3차원 배관계의 진동 및 파워흐름 해석 / Gyeong-Hoi Koo.
발행사항 [대전 : 한국과학기술원, 1996].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8006200

소장위치/청구기호

학술문화관(문화관) 보존서고

DME 96027

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

The main objectives of this study are to propose 1) the vibration analysis method of 3-dimensional piping systems conveying fluid by wave approach, 2) vibration reduction method by the design of periodic pipe supports, and 3) power flow analysis and measurement method. The proposed wave approach can be a powerful tool to analyze the 3- dimensional piping systems conveying fluid with straight pipe sections, curved pipe sections and branched pipe sections. In this study the pipe internal flow is assumed as plug flow model and slender body theory is adopted to formulate the pipe element. And the curved pipe section is formulated by the mixed methodology using the dynamic stiffness matrix and transfer matrix obtained by wave approach. Therefore, the proposed method can treat the straight or curved pipe section with only a single pipe element. The periodic system has a free wave propagation characteristics such as wave stop frequency bands and wave propagation frequency bands. In this study the applications of periodic characteristics to the pipe support design are presented to reduce the vibration level. From this study if the dominant excitation frequency bands are known, the periodic support systems can be applied to reject these frequency bands. The vibration energy flow in piping system conveying flow is investigated by power flow analysis by wave approach. The power flow can be a very good tool to identify the dominant vibration energy flow paths. In this study the effects of the measurement methods, internal loss factor, and sensor array distance in power flow measurements are investigated. These effects give a severe measurement errors, therefore care should be given in power flow measurements.

서지기타정보

서지기타정보
청구기호 {DME 96027
형태사항 xvi, 169 p. : 삽도 ; 25 cm
언어 영어
일반주기 Appendix : A, Internal co-ordinates in curved pipe sections. - B, Mass, damping and stiffness matrix of a single pipe element in finite element formulations
저자명의 한글표기 : 구경회
지도교수의 영문표기 : Youn-Sik Park
지도교수의 한글표기 : 박윤식
수록잡지명 : "Vibration analysis of a 3-dimensional piping system conveying fluid by wave approach". International Journal of Pressure Vessels and Piping (in Press). Elsevier Science Publishers B.V.
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학과,
서지주기 Reference : p. 154-164
주제 Wave approach
Periodic system
Piping system
Power flow
파동접근법
주기시스템
배관계
파워흐름
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