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Optimisation of composite boat hulls using first principles and design rules

机译：使用第一原理和设计规则优化复合船体

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摘要

The design process is becoming increasingly complex with designers balancing societal, environmental and political issues. Composite materials are attractive to designers due to excellent strength to weight ratio, low corrosion and ability to be tailored to the application. One problem with composite materials can be the low stiffness that they exhibit and as such for many applications they are stiffened. These stiffened structures create a complex engineering problem by which they must be designed to have the lowest cost and mass and yet withstand loads. This paper therefore examines the way in which rapid assessment of stiffened boat structures can be performed for the concept design stage. Navier grillage method is combined with genetic algorithms to produce panels optimised for mass and cost. These models are constrained using design rules, in this case ISO 12215 and Lloyd's Register Rules for Special Service Craft. The results show a method that produces a reasonable stiffened structure rapidly that could be used in advanced concept design or early detailed design to reduce design time.
机译：随着设计师平衡社会，环境和政治问题，设计过程变得越来越复杂。复合材料具有出色的强度重量比，低腐蚀和可针对应用进行定制的能力，因此对设计人员具有吸引力。复合材料的一个问题可能是它们表现出的低刚度，因此在许多应用中它们都被硬化了。这些加劲的结构产生了复杂的工程问题，必须将它们设计成具有最低的成本和质量并承受载荷。因此，本文探讨了在概念设计阶段可以快速评估加筋船结构的方法。 Navier格栅方法与遗传算法相结合，以生产针对质量和成本进行了优化的面板。这些模型受设计规则（在本例中为ISO 12215和劳埃德特殊服务船用注册规则）的约束。结果表明，该方法可快速产生合理的加劲结构，可用于高级概念设计或早期详细设计中，以减少设计时间。

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