Introduction

AIV (Acoustic Induced Vibration) and FIV (Flow Induced Vibration) studies are specialized assessments used to evaluate vibration risks in piping systems caused by high-energy flow conditions and turbulent fluid behavior.
In Oil & Gas facilities, these phenomena can lead to fatigue failure, particularly in small-bore connections and unsupported piping, posing significant risks to safety and asset integrity if not properly managed.

Purpose

• Identify piping systems susceptible to vibration-induced fatigue
• Assess risks associated with high-velocity gas flow, pressure drops, and turbulent conditions
• Evaluate the likelihood of fatigue failure, particularly at small-bore connections
• Screen and rank critical lines requiring detailed assessment
• Support safe design, modification, and operational practices
• Ensure compliance with industry guidelines (e.g., Energy Institute recommendations)

Outcomes

• Identification of high-risk lines and components susceptible to AIV/FIV
• Risk ranking based on screening and detailed assessment criteria
• Assessment of fatigue failure likelihood for piping and small-bore connections
• Recommendations for mitigation measures (e.g., supports, reinforcement, design changes)
• Improved piping layout and support configuration
• Input to inspection and maintenance strategies
• Reduction of vibration-related failures and unplanned shutdowns