Piping and Machinery Integrity on Structurally Resonant Platforms and FPSOs

Abstract

Tutorial 11: Operators face significant integrity risks on offshore production facilities due to vibration of machinery and piping systems. These applications are more challenging than land-based systems because compressors, pumps, and other rotating machines are mounted on steel modules that can be structurally resonant and cause excessive vibration. Vibration problems cause fatigue failures in the piping system, machinery component failures, and operator safety issues. This paper identifies best design practices to find and resolve structural vibration problems. The recommendations are based on input and guidance from various offshore operators. The paper will highlight the results from recent field investigations into structural vibration and will evaluate engineering methods used to address structural dynamic issues during the design phase.