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Mooring Analysis for LPG Carriers

A mathematical model of the moored design vessel in loaded and ballast conditions was used during the simulations. The passing vessel was modelled in loaded condition only. Mooring lines and fenders were modelled based on information provided by Shell. The mooring plan used was according to instructions from Shell and OCIMF guidelines.

The study was carried out for an existing LPG terminal (Berth BT1) at Pasir Gudang Johor, Malaysia.

The objective of the mooring analysis was to:

  • Assess mooring line loads under the effect of a range of local environmental conditions
  • Assess mooring line loads due to hydrodynamic interaction from passing ships
  • Advise on the limiting conditions for safe operation in accordance with OCIMF criteria
  • Identify any risks of line breakage and vessel ‘break-out’
  • Create a model of Berth BT1 to account for berth dimensions, mooring dolphins and the surrounding bathymetry

A mathematical model of the moored design vessel in loaded and ballast conditions was used during the simulations.

The passing vessel was modelled in loaded condition only.

Mooring lines and fenders were modelled based on information provided by Shell.

The mooring plan used was according to instructions from Shell and OCIMF guidelines.

The BMT service included:

  • Evaluating the response of moored ships to passing ships
  • Evaluating limiting environmental conditions for safe operation
  • Identifying risks of line breakage and subsequent vessel ‘break-out’