Study of dynamic response of piping system with gasketed flanged joints using finite element analysis

The dynamic response of piping system with gasketed flanged joints at various temperatures is studied using finite element analysis. FE simulation with thermo-mechanical analysis is performed, followed by modal and harmonic analysis. Important parameters affecting the vibration are discussed. Temperature of internal fluid induces thermal stresses which influence the natural frequencies significantly. A comparison has been made between metal gasket and spiral wound gasket. Results show that the natural frequencies corresponding to particular modes are influenced by the type of gasket used.

► We examine dynamic response of piping system at various temperatures.
► Thermo-mechanical analysis is performed followed by modal and harmonic analysis.
► The temperature of internal fluid influences the natural frequencies significantly.
► Natural frequencies and modes are also influenced by type of gasket used.
► Natural frequency is varied by12.3% for first bending mode shape.