自转旋翼/机翼组合构型飞行器飞行动力学特性

摘要

针对一种自转旋翼/机翼组合构型飞行器的飞行动力学特性进行了研究,通过和样例自转旋翼机的对比,分析了它的配平特性、稳定性及操纵响应方面的一些特点.研究表明通过自转旋翼和机翼的组合运用,本文研究的高速型旋翼机飞行速度显著提高,高速前飞时自转旋翼逐步卸载,其转速逐步下降到了低速前飞时的40%;该高速型旋翼机的浮沉模态在低速阶段不稳定,但周期和倍幅时间比较长,随着前飞速度的增加,各模态均趋于稳定;该高速型旋翼机的纵横向周期变距操纵响应略小于样例自转旋翼机,可以考虑增加襟副翼来改善.%The flight dynamics characteristics of an aircraft with autorotating rotor and wing are investigated.The characteristics of trim, stability and control response are analyzed by comparing with the sample of autogyro.The results indicate that the speed of gyroplane can be increased significantly by applying autorotating rotor and wing.The autorotating rotor is gradually offloading in high speed forward flight and the rotate speed drops to 40％ of low speed forward flight.The phugoid modal of the gyroplane is unstable at a low speed, but the period of the modal is long.All modals of the gyroplane become stable when the forward flight speed increases.The control response of cyclic pitch of the gyroplane is less smaller than that of the sample of autogiro and it can be improved by adding flaps and ailerons.