Design optimization of OC3 spar floater based on rigid motion and hydroelastic response

초록

We conducted design optimization analysis on the OC3 spar floater, focusing on its rigid motion and hydroelastic response. The bottom cylindrical diameter, wall thickness, floater draft, and ballast height were selected as design variables to optimize its structural form and performance. Additionally, design constraints were specified, including the mass, materials, draft, tower dimensions, and structural performance, to ensure design feasibility and safety. The optimization objective was to minimize the rigid motion and hydroelastic response of the floater under wave excitation, thereby optimizing its stability and durability. Through finite element analyses and simulation validations, an advanced design solution was developed for the spar floater. This optimized design reduced the surge, heave, and pitch motions of the spar floating offshore wind turbine by 20 %-40 %, providing valuable insights for the design of future offshore wind turbine platforms.

키워드