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A finite element large deflection random response of a pipe containing fluid flowA finite element approach is developed for beam type pipes undergoing large deflections subjected to random loadings. The influence of fluid velocity on the random response is investigated. The root-mean-square (rms) deflections and frequencies for different sound spectrum level values are determined for pipes with both ends either simply supported or clamped. The required number of modes to achieve accurate rms deflections is studied. The prediction of fatigue life is then based on the maximum rms stress. This analytical investigation will help to broaden the basic understanding of the role of fluid flow within structures subjected to random excitations.
Document ID
19930061133
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chiang, C. K.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Structural dynamics: Recent advances; Proceedings of the 4th International Conference, Univ. of Southampton, United Kingdom, July 15-18, 1991 (A93-45104 18-39)
Publisher: Elsevier Applied Science
Subject Category
Structural Mechanics
Accession Number
93A45130
Distribution Limits
Public
Copyright
Other

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