运用格罗斯曼准定常气动力模型计算气动力，采用数值积分方法计算二元翼段的颤振临界速度。(Frequency domain method for solving aerodynamic coupling frequencies of wings)

运用西奥道生非定常气动力模型计算气动力，采用p-k法计算二元翼段的颤振临界速度(The aerodynamic force is calculated by the unsteady aerodynamic model of Theo road. The critical flutter velocity of the two element airfoil is calculated by the P-K method)