Welcome to ABL Group
ABL Group is a leading global independent energy and marine consultant working in energy and oceans to de-risk and drive the energy transition across renewables, maritime and oil and gas sectors. Based in more than 300 locations worldwide and consisting of the following group companies.
The energy and marine consultantsView Website
The offshore wind consultantsView Website
The marine renewables engineering and R&D consultantsView Website
The independent engineering, design and analysis consultantsView Website
The marine surveyor and risk consultantsView Website
The superyacht surveyors and consultantsView Website
East Point Geo
The geotechnical, geophysical and geological consultantsView Website
The ship design specialistsView Website
Longitude Engineering has extensive experience in performing a wide variety of hydrodynamic analyses for the offshore industry, sometimes as a single body, but often as a multibody simulation, where the response of a vessel is dependent upon the effects of a nearby body such as another vessel or a quayside.
Hydrodynamic analyses for the offshore industry
Applications for multibody hydrodynamics may include the following.
- Mooring of vessels in tandem alongside a quay, such as in the case of a floating LNG terminal
- DP capable vessels working in track target mode close to an FPSO or FSO
- STS operations where a smaller vessel may be in the lee of a larger vessel
- Heavy lift operations with multiple floating cranes
As a basis of many other analyses, the derivation of accurate and reliable hydrodynamic coefficients and properties of vessels and offshore structures is critical. At Longitude, we apply this experience through the use of in house macros and sub routines developed over many years which include.
- Advanced Hull form modelling,
- Fine Mesh control
- Validation of Response Amplitude Operators (RAOs) and Quadratic Transfer Functions (QTFs)
- Calculation of vessel motions and accelerations suitable for design and operability analyses.
- Mooring analyses
- Operability Assessments
Case Studies View All
FPU BW JOKO TOLE – Conversion Engineering
Longitude was contracted by BW Offshore to provide the full range of naval architecture and structural engineering service for the detailed design of the conversion of a tanker to…
A2Sea Sea Challenger Dudgeon OWF WTG Mobilisation
Longitude was contracted to undertake naval architectural and structural engineering design and analyses on A2Sea’s jack up installation vessel Sea Challenger, for transportation and installation of Siemens 6.0MW WTG components…
Golok and Sarawak Gas Project Float-over system design and analysis
The Golok Gas field is located offshore Sarawak, Malaysia and the development included the installation of two platforms (GOPA and GOPB). The Sarawak Gas project includes the installation of…