基于目标分流方法的船舶概念方案多学科设计优化

Application of analytical target cascading method in multidisciplinary design optimization of ship conceptual design

  • 摘要:
      目的  船舶概念设计是通过多个学科分析、协调从而得到综合优化概念方案的过程,也是一项技术难度大、涵盖范围广泛的复杂系统设计问题。同时,与船舶单个子学科技术的迅速发展相比,船舶总体设计优化方法发展相对缓慢。
      方法  在阐述船舶分解与协调策略的基础上,采用解析目标分流方法(ATC),以某油船设计为例,建立由浮态与稳性、阻力与推进(快速性)、操纵性、舱容、经济性共5个学科组成的船舶概念设计优化数学模型,探讨船舶概念设计阶段的总体设计优化问题。
      结果  数值算例表明,解析目标分流方法可以较好地解决船舶总体设计学科间复杂耦合所带来的计算困难,具有良好的稳定性与收敛性,
      结论  可有效支撑船舶的总体设计优化。

     

    Abstract:
      Objectives  Ship conceptual design requires the coordination of many different disciplines for comprehensive optimization, which presents a complicated system design problem affecting several fields of technology. However, the development of overall ship design is relatively slow compared with other subjects.
      Methods  The decomposition and coordination strategy of ship design is presented, and the analytical target cascading (ATC) method is applied to the multidisciplinary design optimization of the conceptual design phase of ships on this basis. A tank ship example covering the 5 disciplines of buoyancy and stability, rapidity, maneuverability, capacity and economy is established to illustrate the analysis process in the present study.
      Results  The results demonstrate the stability, convergence and validity of the ATC method in dealing with the complex coupling effect occurring in ship conceptual design.
      Conclusions  The proposed method provides an effective basis for optimization of ship conceptual design.

     

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