Optimization study on transverse structures of deep-water drilling ship

  Objectives  In order to achieve safe and lightweight structural design, structural optimization is usually performed.

  Methods  In the present research, a structural optimization platform is developed based on ISIGHT platform and finite element method. A parameterized model of the objective deep-water drilling ship is generated and the structural optimization on transverse structures is carried out in the proposed optimization platform. The plate thickness and the stiffener size are considered as discrete variable in the optimization platform.

  Results  The structural weight of the transverse components of deep-water drilling ship can be reduced by 11% after the optimization.

  Conclusions  This paper shows that the structural weight can be effectively reduced by the optimized design of strong frame structure.