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   vtol 在 航空航天科学与工程 分类中 的翻译结果: 查询用时:0.178秒
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vtol
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    Nonlinear Trajectory Tracking Control of Under-actuated VTOL Aircraft
    欠驱动VTOL空间飞行器系统的非线性跟踪控制
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    Utilizing this method, the control system of the VTOL aircraft becomes a linear control system.
    第三章是利用非线性动态逆方法研究了矢量推力飞机的控制律,并以此为基础作了初步的仿真试验来验证这个飞机控制系统的设计是合理的;
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    Evolution and Development of World VTOL Power Plant
    世界垂直起降动力装置的演进和展望
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    Development and Key Technologies of VTOL UAVs
    无人驾驶直升机的技术发展及其关键技术
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    Configurations and Control Strategy for VTOL UAVs
    垂直起降无人机总体方案分析及控制策略综合研究
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  vtol
In addition, we describe the approach that our lab2 has taken to micro VTOL evolving towards autonomy and present the mechanical design, dynamic modelling, sensing, and control of our indoor VTOL autonomous robot OS4.3
      
In this paper, we emphasize the importance of the VTOL vehicle as a candidate for the high-mobility system emergence.
      
Micro VTOL1 systems represent a useful class of flying robots because of their strong capabilities for small-area monitoring, building exploration and intervention in hostile environments.
      
The CL-327 (Guardian)is currently under production by Bombardier Services-Defence, and isconsidered the world's most versatile and advanced VTOL system inproduction.
      
The dynamics of the swashplate mechanism of the CL-327, anUnmanned Aerial Vehicle (UAV) with a Vertical Take-Off-and-Landing(VTOL) ability is discussed in this paper, the underlying kinematicshaving been discussed in an earlier paper.
      
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The development survey of world VTOL power plant for the past half century is presented and VTOL power plant type, evolution and further development prospect are discussed in this paper.

介绍了半个世纪以来世界垂直起降动力装置发展的概况,阐述了垂直起降动力装置的类型、演进情况并展望了其发展前景。

In this paper, the system components and technology characteristics of VTOL UAVs are briefly described, and the research and development on VTOL UAVs are discussed in detail with the emphasis upon control technologies. The key technologies in the development of VTOL UAVs are outlined and analyzed, and the future development of VTOL UAVs is prospected.

介绍了无人驾驶直升机的系统组成和技术特点,重点讨论了当前的研究进展和控制技术的发展,分析了发展无人驾驶直升机的关键技术,并对未来无人驾驶直升机的发展方向提出了展望。

Compared with the propeller or the rotor,the ducted fan provides a larger aerodynamic thrust(lift) and the low noise due to the shrouding duct.It can be used in small VTOL UAVs because of its compact structure and the high safty.In forward flight for the kind of VTOL UAV,the ducted fan can work on the complicated flow field.The major problem is the longitudinal trim problem caused by the momentum drag and the pitch moment created by the duct.According to test data of the ducted fan,the duct lift,the...

Compared with the propeller or the rotor,the ducted fan provides a larger aerodynamic thrust(lift) and the low noise due to the shrouding duct.It can be used in small VTOL UAVs because of its compact structure and the high safty.In forward flight for the kind of VTOL UAV,the ducted fan can work on the complicated flow field.The major problem is the longitudinal trim problem caused by the momentum drag and the pitch moment created by the duct.According to test data of the ducted fan,the duct lift,the momentum drag and the pitch moment are analyzed.Results show that the ducted fan is only suitable for aircrafts operated under hovering and low speed flying condition.If the ducted fan is used as a lift device for the longitudinal trim of the ducted fan aircraft in forward flight,the center of gravity of the aircraft is higher than that of the resultant drag of the ducted fan.

涵道风扇较同样直径的孤立风扇能产生更大的升力,且风扇环括在涵道内,既可阻挡风扇气动声向外传播,又结构紧凑、安全性高。以此为升力面和飞行操纵面可构造出多种小型垂直起降无人飞行器。该类无人飞行器在前飞时,涵道处于前方来流和风扇吸流的复杂气流中,其升力、阻力和俯仰力矩对整机的配平乃至稳定控制具有决定性影响。本文对涵道风扇风洞吹风测力试验结果进行了分析研究,并进而提出:前飞时涵道阻力较大,涵道风扇若作为升力装置仅适用于强调悬停和低速飞行性能的飞行器;此外,涵道风扇式飞行器在大速度前飞时,为了实现纵向配平,整机重心垂向位置需要高于涵道阻力作用中心。

 
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