A fuzzy logic modeling of nonlinear unsteady aerodynamics is developed in this paper.

建立了非线性非定常气动力的模糊逻辑模型。

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Then the equation of helicopter pendulum is derived from the nonlinear differential equation and linear differential equation, with the principle of helicopter aerodynamics.

深入探讨了单旋翼涵道风扇式无人直升机的动力学原理，结合其全量方程和线性化增量方程，推导出了其钟摆模态的数学表示。

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CAE analysis field, 2 persons, analyzing stiffness, strength and nonlinear collision of the Complete Auto, analyzing and researching on system kinematics and aerodynamics.

CAE分析方向2人，整车刚度、强度分析，整车碰撞非线性分析；系统运动学分析，空气动力学分析研究。

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