Flow induced vibration accelerating fatigue failure in piping systems
Flow Induced Vibration (FIV), and the related problems of pulsation and Acoustic Induced Vibration (AIV), are induced by flow and pressure fluctuations in piping systems and can lead to accelerated fatigue failure if not properly identified and mitigated. In this case, the customer was anticipating dead-leg pulsation, due to high multiphase flow past a dead-leg entrance, and needed to understand its magnitude, fatigue life implications, and whether it could be mitigated.
Drawing on the team’s expertise in developing and validating methods for FIV and AIV characterization, Computational Fluid Dynamics (CFD) was used to develop loading spectra and then applied to frequency domain Finite Element Analysis (FEA) to establish stress spectra. Using frequency domain cycle counting methods it was then possible to calculate fatigue lives for critical elements.
Despite initial assessments, it was possible to confirm that pulsation was not going to cause accelerated fatigue failure, saving the customer the considerable expense of having to re-design the component.
To learn more about how Flow Induced Vibration (FIV) accelerates fatigue failure in piping systems,or if you have any questions, contact our team today.
Digital Engineering Case Studies
Read examples of how Element Digital Engineering utilize modeling, simulation, and other digital tools to help our customers innovate and solve complex challenges.
Modeling and Simulation
We specialize in modeling and simulation to accelerate your research and development initiatives, optimize your designs and support safe, efficient operations.
Data Science and Machine Learning
We combine state-of-the-art data science and machine learning to provide insights that help you improve performance and increase productivity.
Digital Twin Solutions
We combine data and science-based approaches to build digital twins of your product or process that improve your designs and operational performance.