【摘要】 鸭式旋翼/机翼(CRW)飞机是一种新型复合升力飞机。旋转机翼的焦点位置、迎风面积随旋转机翼方位角剧烈变化,同时旋转机翼气动力受前机身上洗流影响明显,综合影响使得旋转机翼在旋转状态下全机气动特性随旋转机翼方位角剧烈变化。通过风洞试验对纵向气动特性进行了研究,结果表明:旋转机翼的升阻特性变化对全机升阻及俯仰特性的影响以振荡的形式表现,频率为旋转机翼的旋转频率,幅值都在固定翼状态稳态值的5%以上。更多还原

【Abstract】 The canard rotor/wing airplane is a kind of new concept of aircraft.The aerodynamic center and windward area of the rotor/wing are functions of azimuth angle.Aerodynamic characteristics of the rotor/wing is also affected by upwash stream of forward fuselage.So,aerodynamic characteristics of the rotor/wing are functions of azimuth angle.Longitudinal aerodynamic characteristics of canard rotor/wing vehicle are investigated by wind tunnel test.The results indicate that the unload rotor/wing has strong effect on the plane.It behaves as some oscillating curves and the frequency of the loads is the harmonics of the rotor speed.Amplitude of curves are all above 5% of fixed wing values.更多还原