深水钻井船横向结构优化研究

Optimization study on transverse structures of deep-water drilling ship

摘要:
目的为了实现安全、轻量化的钻井船结构设计，通常需要进行结构优化。
方法构建一个基于ISIGHT平台和有限元法的结构优化平台。建立深水钻井船的参数化模型，将板厚和加强筋尺寸视作离散变量，在搭建的优化平台上进行横向结构优化。
结果经过结构优化后，深水钻井船横向构件的结构重量可降低11%。
结论研究表明，对深水钻井船进行强框架结构优化设计可有效减轻结构重量。

Abstract:
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.