基于参数化船型的阻力优化研究

Research on Resistance Optimization Based on Parametric Hull Form

使用Friendship进行船体完全参数化建模,并使用该软件中的Feature编程功能编程实现Shipflow型值数据的提取,通过改变一系列重要的船型参数实现变换船型几何模型,以获得满足性能需求的船型。最后利用该软件的优化框架,采用切线搜索法完成1300TEU集装箱船的兴波阻力优化,优化球艏和前体船体曲面。结果表明,该参数化方法在改进船型水动力性能方面有很好的效果。

The parametric expression of ship geometry model is the basis of multidisciplinary design Optimization. The parametric expression can provide a unified ship geometric model for the interdisciplinary analysis and optimization, and modifies automatically the hull lines based on the interdisciplinary analysis results. The Friendship software is attempted to apply in creating a hull absolutely parametric model, and extract the type values of ship flow based on the programming function of the feature in Friendship. The ship geometry model is transformed by changing a series of important parameters of hull form so that one good hull form which we need is acquired. At last, the optimizations for sea-keeping resistance performance, bulbous-bow and precursor to the hull surface of 1300 TEU container ship are finished based on the optimization framework of the software and Tsearch(Tangent Search). The research indicates that the parametric method has a good effect on the improvement of ship hydrodynamic performance.