Frequency-Dependent Element Matrices for Vibration Analysis of Piping Systems

J. Ocean Eng. Technol. 1992;6(2):125-132.

배영계의 진동해소를 위한 주파수종속 요표행렬

양보석,안영홍,최원호

부산수산대학교 기계공학과,부산수산대학교 기계공학과,효성중공업

Keywords: Vibration Analysis, Frequency-Dependent Matrices, Pipe Element, Transfer Matrix, Dynamic Stiffness Matrix

핵심용어: 진동해석, 주파수종속 요소행렬, 관요소, 전달행렬, 동강성행렬

Abstract

This paper presents an approach for the derivation of frequency-dependent element matrices for vibration analysis of piping systems containing a moving medium. The dynamic stiffness matrix is deduced from transfer matrix, and, in turn, the frequency-dependent element matrices are derived. Numerical examples show that method gives more accurate results than those obtained using the conventional static shape function based element matrices.