摘要
建立了复合式共轴直升机的飞行动力学数学模型。根据复合式共轴直升机的构型特点,计入上下旋翼,旋翼与机翼之间的相互气动干扰,建立了旋翼、机翼等部件的气动计算模型。以某小型复合式共轴直升机为例,运用牛顿迭代法完成了3种飞行模式下的配平计算,得到了从悬停到高速前飞各种飞行状态下的操纵量和状态量,分析了复合式共轴直升机飞行的物理原理及在整个稳定飞行速度范围内的飞行特性。
An aerodynamic model of the compound coaxial helicopter is established.According to the configuration of the compound coaxial helicopter and the interaction between wing and rotor,general aerodynamic forces and moments of each part such as rotor,wing are modeled.One compound coaxial helicopter is taken as an example to demonstrate the flight dynamic simulation math model in various symmetrical steady level flight conditions.The results give manipulated variable and state variable from hovering to forward flight at high speed.The characteristics of the compound coaxial helicopter over the whole steady level flight conditions are analyzed.
出处
《飞机设计》
2011年第3期13-17,36,共6页
Aircraft Design
