Coupled vibration analysis of offshore platform /FPSO structures with mounted compressors /pumps /piping systems, etc. is an important business activity of CCPGE. The purpose of this analysis is to improve the design reliability of offshore platform /FPSO structures and their mounted compressors, pumps, piping systems, and other equipment.
The analysis includes static analysis and dynamic analysis. The static analysis calculates the static stresses and deformations of offshore compressor /pump packages in lifting and transportation operation. The dynamic analysis calculates the vibration levels, displacements and dynamic stresses of compressors /pumps /piping systems mounted on the platform /FPSO, taking into account the flexibility of platform /FPSO supporting structures during operating conditions.
The analysis is performed using ANSYS and STAAD Pro software. The analysis loads include weights of compressor /pump packages, piping systems and structures, live loads, wind loads, snow loads, wave loads and other dynamic loads such as the unbalanced forces and moments of drivers and compressors /pumps, pressure pulsation induced shaking forces, and compressor cylinder gas pressures, etc.