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首页> 外文会议>Sixth International Colloquium on Ageing of Materials and Methods for the Assessment of Lifetimes of Engineering Plant, Apr 30-May 4, 2001, Cape Town/South Africa >THE ROLE OF COMPUTATIONAL TECHNOLOGIES IN SOLVING A FLUID INDUCED PIPING VIBRATION PROBLEM
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THE ROLE OF COMPUTATIONAL TECHNOLOGIES IN SOLVING A FLUID INDUCED PIPING VIBRATION PROBLEM

机译：计算技术在解决流体引起的管道振动问题中的作用

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摘要

Enormous cost can result from unplanned downtime in a production plant. One example arises from vibration in piping systems fabricated from stainless steel. The aim of this paper is to illustrate the use and limits of various techniques in the problem solving process applied to a system of bends, reducers (concentric and eccentric), a butterfly valve, a pressure relief valve, branch connections and spring supports. The paper specifically addresses the use of CFD (steady-state and transient), FEA (linear-static, dynamic and acoustic) dynamic/hydraulic simulation and various signal-processing techniques to characterize and understand the fluid and structural behaviour and response to fluid forces at work in the system. The system as well as a number of proposed modifications was simulated. Special focus is given to the diversity of computational techniques applied and the interpretation of results from a flow-induced vibration point of view. Experimental validation exercises confirmed the effectiveness of applied modifications.
机译：生产工厂的计划外停机可能会导致巨大的成本。一个例子是由不锈钢制成的管道系统中的振动引起的。本文的目的是说明各种技术在解决问题的过程中的应用和局限性，这些问题适用于弯头，减压阀（同心和偏心），蝶形阀，泄压阀，分支连接和弹簧支撑系统。本文专门介绍了使用CFD（稳态和瞬态），FEA（线性静态，动态和声学）动态/液压仿真以及各种信号处理技术来表征和理解流体和结构特性以及对流体力的响应的方法。在系统中工作。模拟了该系统以及许多建议的修改。特别关注的是所应用的计算技术的多样性以及从流动引起的振动角度对结果的解释。实验验证练习证实了应用修改的有效性。

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