Читать книгу Flow-Induced Vibration Handbook for Nuclear and Process Equipment - Группа авторов - Страница 21

Failures due to excessive vibration must be avoided in process equipment, preferably at the design stage. Thus, a comprehensive flow‐induced vibration analysis is required before fabrication of process equipment, such as shell‐and‐tube heat exchangers. It must be shown that tube vibration levels are below allowable levels and that unacceptable resonances and fluidelastic instabilities are avoided.

The purpose of this chapter is to summarize our design guidelines for flow‐induced vibration in components operating in gas, liquid, and two‐phase flows. This overview chapter can be used by the designer as a guideline for vibration analysis, by the project engineer to get an overall appreciation of flow‐induced vibration concerns, or by the plant operator to understand tube failures. This overview pertains to critical regions of shell‐and‐tube heat exchangers, such as nuclear steam generators (SG), heat exchangers (HX), coolers, condensers and moisture‐separator‐reheaters (MSR).