OTL worked on a development of 17WM offshore wind turbine with TLP Foundation for CNOOC Research Institute Ltd. OTL’s scope of work included optimizing the TLP configurations, design of the TLP hull structure, structural strength, and fatigue analysis, covering wind and wave loadings. The analysis and design employ detailed FE method for stress and buckling, and time domain rain-flow counting method for fatigue damage calculation.

Client: CNOOC Research Institute Ltd.

Date of Started:05/2025

Wind Turbine: 17MW

SOW: OTL performed following designs and analyses, and submitted associate reports

· Configuration optimization of Wind Turbine support structures (three-legged TLP sub-structure)

· Structural design and analyses

o Structure design of the TLP hull (plating, girders, stiffeners, brackets, and etc.)

o In-place global and local strength analysis under critical wind, wave, and current loads

o Supporting structure buckling check

o In-place time history global fatigue screening with rain-flow counting method

o In-place time history local fatigue assessment with rain-flow counting method