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contributor authorY. Cai
contributor authorS. Chandra
contributor authorS. S. Chen
date accessioned2017-05-08T23:39:22Z
date available2017-05-08T23:39:22Z
date copyrightMay, 1992
date issued1992
identifier issn0094-9930
identifier otherJPVTAS-28334#139_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/110763
description abstractFluidelastic instability of loosely supported tubes, vibrating in a tube support plate (TSP)-inactive mode, is suspected to be one of the main causes of tube failure in some operating steam generators and heat exchangers. This paper presents a mathematical model for fluidelastic instability of loosely supported tubes exposed to nonuniform cross flow. The model incorporates all motion-dependent fluid forces based on the unsteady-flow theory. In the unstable region associated with a TSP-inactive mode, tube motion can be described by two linear models: TSP-inactive mode when tubes do not strike the TSP, and TSP-active mode when tubes do strike the TSP. The bilinear model (consisting of these linear models) presented here simulates the characteristics of fluidelastic instability of loosely supported tubes in stable and unstable regions associated with TSP-inactive modes. Analytical results obtained with the model are compared with published experimental data; they agree reasonably well. The prediction procedure presented for the fluidelastic instability response of loosely supported tubes is applicable to the stable and unstable regions of the TSP-inactive mode.
publisherThe American Society of Mechanical Engineers (ASME)
titleA Theory for Fluidelastic Instability of Tube-Support-Plate-Inactive Modes
typeJournal Paper
journal volume114
journal issue2
journal titleJournal of Pressure Vessel Technology
identifier doi10.1115/1.2929021
journal fristpage139
journal lastpage148
identifier eissn1528-8978
keywordsForce
keywordsFluids
keywordsMotion
keywordsBoilers
keywordsHeat exchangers
keywordsFailure
keywordsUnsteady flow AND Cross-flow
treeJournal of Pressure Vessel Technology:;1992:;volume( 114 ):;issue: 002
contenttypeFulltext


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