摘要
将双参数椭圆型曲线作为回转体头部线型,以辐射到头部驻点处的边界层转捩区辐射声压级作为目标函数,给出了头部线型的优化设计方法。结果表明:经优化所得回转体头部线型的流噪声明显小于初始线型;所建立的回转体头部线型优化设计模型,不仅可以在利用双参数椭圆型曲线进行头部线型设计中直接应用,其基本模式也适用于其它曲线族设计头部线型。
Using the curve of two parameter ellipse model as the fore-body geometry, a optimum method for fore-bodyshaping design is put forward with the sound pressure level from the boundary layer transition received at stagnationpoint of an axisymmetric body adopted as the objective function. It is shown that the flow noise from the optimumfore-body shape is obviously lower than that from the initial shape; the optimum design of thc fore-body shape in thistext applies to not only the curve of two parameter ellipse model but also the other curves.
出处
《声学学报》
EI
CSCD
北大核心
2002年第3期258-262,共5页
Acta Acustica
基金
中船总国防重点预研项目资助
