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。 Taking the two-parameter ellipse curve as the head line type of the revolving body and the radiation sound pressure level of the transition zone at the boundary layer radiated to the head stagnation point as the objective function, the optimization design method of the head line type is given. The results show that the stream noises of headline are obviously smaller than that of the initial one. The optimized design model of head of headstock can not only be used in headline design by using two-parameter elliptic curve Direct application, the basic model is also applicable to other curve family design head linear.