文档介绍：ARTICLE IN PRESS
Journal of Fluids and Structures 18 (2003) 485–500
ate/jnlabr/yjfls
Vibration analysis of shell-and-tube heat exchangers: an
overview—Part 2: vibration response, fretting-wear, guidelines
. Pettigrew*, . Taylor
BWC/AECL/NSERC Fluid–Structure Interaction Chair, Department of Mechanical Engineering, Ecole! Polytechnique
Montreal,! QC, Canada H3T 1J4
Inspection, Monitoring and Dynamics Branch, Atomic Energy of Canada Ltd., Chalk River Laboratories
Chalk River, ON, Canada K0J 1J0
Received 12 March 2003; accepted 13 August 2003
Abstract
Design guidelines were developed to prevent tube failures due to excessive flow-induced vibration in shell-and-tube
heat exchangers. An overview of vibration analysis procedures and mended design guidelines is presented in this
paper. This paper pertains to liquid, gas and two-phase heat exchangers such as nuclear steam generators, reboilers,
coolers, service water heat exchangers, condensers, and moisture-separator-reheaters. Part 2 of this paper covers forced
vibration excitation mechanisms, vibration response prediction, resulting damage assessment, and acceptance criteria.
r 2003 Elsevier Ltd. All rights reserved.
1. Introduction
Tube failures due to excessive vibration must be avoided in heat exchangers and nuclear steam generators, preferably
at the design stage. Thus, prehensive flow-induced vibration analysis is required before fabrication of shell-and-
tube heat exchangers. It must be shown that tube vibration levels are below allowable levels and that eptable
resonances and fluidelastic instabilities are avoided.
The purpose of this overview paper is to summarize our design guidelines for flow-induced vibration of heat
exchangers. A heat exchanger vibration analysis consists of the following steps: (i) flow distribution calculations, (ii)
dynamic parameter evaluation (., damping, effective tube mass, and dynamic stiffness), (iii) formulation of vibration
excitation mecha