摘要
针对实验室30 kg级跷跷板结构主旋翼自主无人直升机的结构特点,在对其进行空气动力学分析后,基于达朗伯原理建立绕自由空间点转动的主旋翼跷跷板运动空气动力学模型,并以实际物理参数为条件开展计算机仿真实验。仿真结果验证了所建模型的正确性,并进一步指出:主旋翼跷跷板运动系统是自稳定系统;自主无人直升机的结构特点决定了跷跷板运动的过渡过程,而桨叶受到的相对气流作为激励信号在主旋翼跷跷板运动的稳态过程中起主导作用。
On teeterboard flap of the main rotor rotating around free space point of 30 kg class unmanned autonomous helicopter,aerodynamics kinematics model are set up in terms of D'Alembert Principle.The simulation with the helicopter parameter validates the model reasonable,and points out: Main rotor with teeterboard flap is self-stable system;unmanned autonomous helicopter structure plays a leading role on transient process of main rotor teeterboard flap,and relative air current acting on the blade plays a leading role on its steady process.
出处
《控制工程》
CSCD
北大核心
2013年第S1期42-44,共3页
Control Engineering of China
关键词
无人直升机
主旋翼
跷跷板运动
动力学建模
达朗伯原理
unmanned autonomous helicopter
main motor
teeterboard flap
dynamics modeling
D'Alembert Principle
