一种无人机旋翼表面微结构减阻膜及其制造方法

    公开(公告)号:WO2020151379A1

    公开(公告)日:2020-07-30

    申请号:PCT/CN2019/123600

    申请日:2019-12-06

    Applicant: 深圳大学

    Abstract: 一种无人机旋翼(5)表面微结构减阻膜(1),该无人机旋翼(5)表面微结构减阻膜(1)包括隔离层(11),以及,设于隔离层(11)一侧的微结构层(12),微结构层(12)表面设有平行排列的微型沟槽(121),微型沟槽(121)呈V形或矩形或U形,微型沟槽(121)的宽度S为0.02mm~0.4mm,微型沟槽(121)的高度H为0.05mm~0.3mm。减阻膜(1)因表面具有微型沟槽(121)而具有良好的减阻效果,当减阻膜(1)贴附在无人机旋翼(5)表面后,能有效减少旋翼(5)飞行时所受到的阻力,从而能减少无人机的耗能量,提高了无人机的续航能力。

    ULTRA-QUIET PROPELLER SYSTEM
    2.
    发明申请

    公开(公告)号:WO2019210110A1

    公开(公告)日:2019-10-31

    申请号:PCT/US2019/029237

    申请日:2019-04-25

    Abstract: A propeller system combines innovative strategies to create a new methodology to reduce propeller or rotor noise. The propeller is specifically aimed for ultra-quiet electrically powered aircraft for use in high proximity aviation, but its low-noise advantages will extend to other purposes. The propeller blade includes geometries, along with size and operational limitations that minimize rotational and vortex noise, vibration and span-wise air flow on the blade. To further reduce noise, the propeller provides greater relative thrust on the inboard portions of the blade than do conventional propellers and provides less than conventional relative thrust including negative thrust at the outermost portions of the blade. The propeller blade includes stepped changes in shape at calculated intervals that can reduce resonant blade vibrations and their resultant noise. This ultra-quiet propeller design can also be used for quieting hovercraft, drones, surveillance aircraft, indoor fans, wind tunnels and other applications.

    SISTEMA Y PROCEDIMIENTO SUSTENTADOR, PROPULSOR Y ESTABILIZADOR PARA AERONAVES DE DESPEGUE Y ATERRIZAJE VERTICAL
    5.
    发明申请
    SISTEMA Y PROCEDIMIENTO SUSTENTADOR, PROPULSOR Y ESTABILIZADOR PARA AERONAVES DE DESPEGUE Y ATERRIZAJE VERTICAL 审中-公开
    用于提升,推进和稳定垂直起落架的飞机的系统和方法

    公开(公告)号:WO2012035178A1

    公开(公告)日:2012-03-22

    申请号:PCT/ES2011/000147

    申请日:2011-04-12

    Abstract: Sistema y procedimiento sustentador, propulsor y estabilizador para aeronaves de despegue y aterrizaje vertical que consiste en aplicar simultáneamente y combinados como sustentadores durante el tramo inicial del ascenso y al final del descenso: a) unos fanes o turbinas eléctricas, EDF y b) al menos un rotor de palas externas y/o de alas giratorias, y/o c) el flujo de los motores dirigido hacia abajo y/o d) chorros de aire a presión inyectado sobre bordes de ataque de las aletas de control, y/o e) chorros de agua, y/o í) complementados con la sustentación aerodinámica producida durante el avance frontal de la aeronave, la estabilización se consigue con la rigidez giroscópica de los rotores y dos o más fanes sustentadores, aletas oscilantes y/o chorros de aire estabilizadores situados en dos o mas puntos periféricos en un plano normal al eje vertical de la aeronave.

    Abstract translation: 起升,推进和稳定垂直起飞和着陆飞机的系统和方法,其涉及在上升和下降结束时同时施加以下组合作为升力装置:a)电风扇或涡轮机 和b)具有外部叶片和/或旋转翼的至少一个转子和/或c)马达的向下流动和/或d)喷射到控制翅片的前缘上的加压空气射流和/或 e)喷水机,和/或i)补充飞机向前运动过程中产生的空气动力升力; 通过转子的陀螺刚度和位于垂直于飞行器的垂直轴的平面中的两个或更多个周边点中的两个或更多个提升风扇,摆动翅片和/或稳定空气射流来实现稳定。

    SELF LOCKING TRIM TAB
    6.
    发明申请
    SELF LOCKING TRIM TAB 审中-公开
    自锁式手提包

    公开(公告)号:WO2009085352A1

    公开(公告)日:2009-07-09

    申请号:PCT/US2008/078064

    申请日:2008-09-29

    CPC classification number: B64C27/615 B64C2027/7288 Y02T50/34

    Abstract: A trim tab assembly includes first and second shape memory alloy (SMA) actuators and a trim tab substrate which provide elastic/plastic locking in response to an induced strain actuation.

    Abstract translation: 修剪翼片组件包括第一和第二形状记忆合金(SMA)致动器和修剪翼片基底,其响应于感应应变致动而提供弹性/塑性锁定。

    ADJUSTABLE BLADE PROFILE OF THE ROTOR BLADE OF A ROTARY WING AIRCRAFT
    8.
    发明申请
    ADJUSTABLE BLADE PROFILE OF THE ROTOR BLADE OF A ROTARY WING AIRCRAFT 审中-公开
    ROTORBLATT可调板材型旋翼机

    公开(公告)号:WO0037309A3

    公开(公告)日:2002-11-21

    申请号:PCT/DE9903789

    申请日:1999-12-01

    Inventor: MUELLER GUENTHER

    Abstract: The invention relates to an adjustable blade profile of the rotor blade of a rotary wing aircraft. Said blade profile consists of a blade base body and the two profile edges. At least one of said profile edges can be adjusted about an axial direction along the longitudinal axis of the blade. The aim of the invention is to provide a helicopter rotor blade with an aerodynamic profile that can be adjusted in such a manner that the aerodynamics thereof can be better adapted to the flight conditions and the compensation of the aerodynamic lift between forward and rearward direction of the blade and which at the same time requires less expenditure. To this end, the invention provides the characterizing features of claim 1. The inventive design facilitates a self-adjusting profile change of the rotating blade.

    Abstract translation: 本发明涉及从一个旋翼飞机的转子叶片可调节的叶片轮廓,从所述基体和两个轮廓边缘的片翼型形成和至少一个轮廓边缘是可调节的约纵向引导到的轴线方向的叶片纵轴。 本发明的目的是使直升机的转子叶片的空气动力学轮廓可调节的,使得它的空气动力学是更好适应于飞行条件和浮力补偿器和Blattvor-回纸之间同时需要较少的努力。 该目的是根据权利要求(1)的特征来实现。 该解决方案的优点在于在旋转叶片的自调整轮廓的变化。

    MAIN ROTOR SYSTEM FOR HELICOPTERS
    9.
    发明申请
    MAIN ROTOR SYSTEM FOR HELICOPTERS 审中-公开
    主要用于直升机的转子系统

    公开(公告)号:WO9529842A2

    公开(公告)日:1995-11-09

    申请号:PCT/US9504929

    申请日:1995-04-24

    CPC classification number: A63H27/12

    Abstract: A high-lift main rotor system (1) is provided for a full-size or model helicopter (15). Main rotor system (1) includes rotor blades (100) and subrotor blades (84) for producing aerodynamic lift. The subrotor blades (84) act to augment control and stability of main rotor (1). Main rotor blades (100) are configured to include airfoiled cross sections (103-107) of varying shape and are mounted to a rotor hub (77) to fold within limits about a horizontal flapping axis (10). A linkage including swashplate (140) is provided for transmitting pilot control commands to the rotating rotor blades (100).

    Abstract translation: 提供用于全尺寸或型号直升机(15)的高升力主转子系统(1)。 主转子系统(1)包括用于产生空气动力升程的转子叶片(100)和副转子叶片(84)。 副转子叶片(84)用于增加主转子(1)的控制和稳定性。 主转子叶片(100)构造成包括不同形状的翼型横截面(103-107),并且安装在转子毂(77)上,以围绕水平拍动轴线(10)限制折叠。 提供包括斜盘(140)的联动装置,用于将先导控制命令传送到旋转转子叶片(100)。

    一种双翼飞行装置
    10.
    发明申请

    公开(公告)号:WO2022110271A1

    公开(公告)日:2022-06-02

    申请号:PCT/CN2020/133750

    申请日:2020-12-04

    Inventor: 王志成

    Abstract: 本发明涉及飞行器技术领域,具体指一种双翼飞行装置;包括平动翼、驱动装置和载体,所述载体上设有支架,支架上设有两个能在其上转动的平动翼,两个平动翼上下间隔呈配对设置;所述驱动装置固定设置在载体上,驱动装置分别传动连接两个平动翼从而使两个平动翼分别沿支架上下往复运动;本发明结构合理,驱动装置驱动支架上的两个平动翼上下往复运动,平动翼在上升时空气对扰流翼面前侧曲面和后部平滑面之间产生压力差从而促使平动翼单向旋转;平动翼在下降时扇动翼面与空气之间产生竖直向上的作用力;平动翼将驱动装置的上下往复运动转化为自身的旋转运动,进而通过旋转运动产生升力使载体获得升力实现飞行目的。

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