垂直起降无人机总体方案分析及控制策略综合研究

垂直起降无人机是垂直起降技术和无人机的结合体。它既有直升机的垂直起降和悬停能力,又具有固定翼飞机的速度快、航程远的特点。同时,它还具备一般无人机的基本特点,可满足执行特殊任务的需要。因无需考虑机载人员的因素,垂直起降无人机可以采用的垂直起降和总体设计方案更加灵活和多样。本文在分析现有各种垂直起降无人机方案的基础上,提出了“双旋翼尾坐式飞翼”布局,并在随后对其进行了详细参数确定和性能估算。最后,对其进行了控制策略的研究。

Configurations and Control Strategy for VTOL UAVs

As a combination of VTOL(Vertical Take-Off and Landing)technology and UAV(Unmanned Aerial Vehicle),VTOL-UAVs can provide not only vertical take-off/landing and hovering capabilities,as a helicopter,but also high speed and long range capabilities,as a fixed-wing airplane.Also,VTOL-UAVs can perform special missions as a common UAV.Because of no men in UAVs,design constraints associated with human pilots in manned vehicles will be eliminated in the conceptual design phase of UAVs and therefore,more design degrees of freedom will be provided.A "tailsitter flying-wing with dual-rotor" configuration is proposed,based on the analysis of existing VTOL-UAV configurations.Detail parameter definition and performance estimation are conducted.Finally, a study of control strategy is made.