Acoustic Induced Vibration analysis (AIV) in piping

Mohd Sabri, Mu'adz (2021) Acoustic Induced Vibration analysis (AIV) in piping. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Piping system is widely used in almost all industries around the world. The process of pipe design is the most paramount part where any obstacles need to be considered to avoid unwanted events after installation and operation. Acoustic Induced Vibration (AIV) is one of the pipe failures that should be avoided as it would happen in short period of time without any physical signs and merely can be detected by using specific vibration sensor. This research proposed methods to properly simulate the AIV inside a 90° reduc ing tee and 90° bend pipe by using Computational Fluid Dynamics (CFD) in ANSYS. The total amplitude of vibration is obtained th.rough Fluid-Structme Interaction (FSI). The possible mitigation methods are recommended fo r each pipe configurations. In such cases, ATV in 90° reducing tee pipe is shown to be reduced by applying the Wrought-Butt Welding (Fillet) and Gusset. Meanwhile, for 90° bend pipe, additional thickness and contour fitting can be applied and it exhibits its efficiency in reducing the ATV effect.

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