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本文提出了带翼尖帆片的非共面帆翼气动力计算以及帆片参数优化计算方法。文中采用涡格法研制了一种有效的非共面气动力计算程序，采用Ｐｏｗｅｌｌ方法进行优化计算，以获得最优的帆片配置方案。设计了某运输机的翼尖帆片，计算了升力和阻力系数，其结果与风洞试验值基本一致。计算和风洞试验结果表明，翼尖帆片对减少机翼的诱导阻力具有明显效果，本文的方法可供翼尖帆片初步设计应用。
In this paper, the aerodynamic calculation of non-coplanar sail with wingtip and the method of calculating the parameters of sailplate are proposed. In this paper, an effective non-coplanar aerodynamic calculation program is developed by the method of vortex lattice. Powell method is used to optimize the calculation to obtain the optimal configuration of the blade. The wingtip of a transport aircraft was designed and the lift and drag coefficients were calculated. The results are basically the same as the wind tunnel test. The wind tunnel test results show that the wingtip blade has obvious effect on reducing the induced resistance of the wing, and the method in this article can be used for the preliminary design and application of the wingtip blade.