针对纵列式双旋翼共面与不共面两种情况,建立了双旋翼气动干扰特性分析的计算方法,通过与试验数据对比,表明了方法的有效性。在此基础上,开展了悬停状态下纵列式双旋翼的气动性能初步分析,获取了旋翼拉力、需用功率随桨榖间距、旋翼转速、总距角等参数的变化影响规律,结果表明,相比于传统单旋翼直升机,纵列式双旋翼附加了一项诱导功率,其大小随旋翼桨榖间距的增大而减小。 Aiming at the co-planar and non-coplanar tandem twin rotors, the method to calculate the aerodynamic characteristics of the twin rotors is established. The effectiveness of the method is demonstrated by comparison with the experimental data. On this basis, the aerodynamic performance of Tandem twin-rotor with hovering state is analyzed. The influence of rotor pull force, required power with the variation of paddle pitch, rotor speed and total pitch angle is obtained. The results show that In contrast to conventional single-rotor helicopters, the tandem twin rotor adds an inducing power, which decreases in size as the rotor blade pitch increases.