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    RADAR ENERGY ABSORBING DEFORMABLE LOW DRAG VORTEX GENERATOR
    1.
    发明申请
    RADAR ENERGY ABSORBING DEFORMABLE LOW DRAG VORTEX GENERATOR 有权

    公开(公告)号：US20170137115A1

    公开(公告)日：2017-05-18

    申请号：US15227921

    申请日：2016-08-03

    Applicant: University of Kansas

    Inventor： Ronald M. Barrett

    IPC: B64C23/06 ,  B64C21/00 ,  F15D1/00 ,  H01Q17/00

    CPC classification number: F15D1/004 ,  B64C21/02 ,  B64C23/06 ,  F15D1/003 ,  G03G13/26 ,  G03G13/283 ,  H01Q17/004 ,  H01Q17/008 ,  Y02T50/162

    Abstract: A family of Radar energy Absorbing Deformable Low Drag Vortex Generators (RAD-LDVG) is described herein. This family of devices are fabricated in such a way that it can conform to aircraft surface features while reducing radar returns from structural details. Vortex generators (VGs) are typically used to reattach or smooth gross flowfields over aircraft surfaces. By doing so, an airfoil or wing can maintain attached flow at higher angles of attack and/or higher lift coefficients than one without the VGs. These devices are also used to reattach and/or smooth flows that encounter crossflow-induced instabilities and/or adverse pressure gradients on the upper surfaces of wings or near aircraft boattails. Other uses include reduction of buffet, vibration, flutter, cavity resonance or general bluff-body pressure drag reduction. Although conventional rigid VGs do generate vortical aerodynamic structures, two major problems are often experienced: i.) the inability to conform to curved surfaces, ii.) the generation of radar cross-section spikes produced by the VGs themselves.

    Radar energy absorbing deformable low drag vortex generator
    4.
    发明授权
    Radar energy absorbing deformable low drag vortex generator 有权
    雷达能量吸收可变形低阻涡流发生器

    公开(公告)号：US09416802B2

    公开(公告)日：2016-08-16

    申请号：US14144526

    申请日：2013-12-30

    Applicant: University of Kansas

    Inventor： Ronald M. Barrett

    IPC: B64C23/06 ,  F15D1/00 ,  B64C21/02 ,  H01Q17/00

    CPC classification number: F15D1/004 ,  B64C21/02 ,  B64C23/06 ,  F15D1/003 ,  G03G13/26 ,  G03G13/283 ,  H01Q17/004 ,  H01Q17/008 ,  Y02T50/162

    Abstract: A family of Radar energy Absorbing Deformable Low Drag Vortex Generators (RAD-LDVG) is described herein. This family of devices are fabricated in such a way that it can conform to aircraft surface features while reducing radar returns from structural details. Vortex generators (VGs) are typically used to reattach or smooth gross flowfields over aircraft surfaces. By doing so, an airfoil or wing can maintain attached flow at higher angles of attack and/or higher lift coefficients than one without the VGs. These devices are also used to reattach and/or smooth flows that encounter crossflow-induced instabilities and/or adverse pressure gradients on the upper surfaces of wings or near aircraft boattails. Other uses include reduction of buffet, vibration, flutter, cavity resonance or general bluff-body pressure drag reduction. Although conventional rigid VGs do generate vortical aerodynamic structures, two major problems are often experienced: i.) the inability to conform to curved surfaces, ii.) the generation of radar cross-section spikes produced by the VGs themselves.

    Abstract translation: 这里描述了一系列雷达能量吸收可变形的低阻涡旋发电机（RAD-LDVG）。 该系列设备的制造方式使其能够符合飞机表面特征，同时减少结构细节的雷达回报。 涡轮发电机（VG）通常用于重新连接或平滑飞机表面上的总流场。 通过这样做，翼型或机翼可以在没有VG的情况下以更高的迎角和/或更高的升力系数保持附着的流动。 这些装置还用于重新连接和/或平滑流动，这些流在翼的上表面或飞机上的附近遇到交叉流引起的不稳定性和/或不利的压力梯度。 其他用途包括减少自助餐，振动，颤振，腔体共振或一般虚张声压减阻。 虽然常规的刚性VG确实产生涡旋空气动力学结构，但是经常遇到两个主要问题：i）不能符合弯曲表面，ii。）由VG本身产生的雷达横截面尖峰的产生。

    RADAR ENERGY ABSORBING DEFORMABLE LOW DRAG VORTEX GENERATOR
    5.
    发明申请
    RADAR ENERGY ABSORBING DEFORMABLE LOW DRAG VORTEX GENERATOR 有权
    雷达能量吸收可变低压VORTEX发电机

    公开(公告)号：US20150329200A1

    公开(公告)日：2015-11-19

    申请号：US14144526

    申请日：2013-12-30

    Applicant: University of Kansas

    Inventor： Ronald M. Barrett

    IPC: B64C21/02 ,  F15D1/00 ,  H01Q17/00

    CPC classification number: F15D1/004 ,  B64C21/02 ,  B64C23/06 ,  F15D1/003 ,  G03G13/26 ,  G03G13/283 ,  H01Q17/004 ,  H01Q17/008 ,  Y02T50/162

    Abstract: A family of Radar energy Absorbing Deformable Low Drag Vortex Generators (RAD-LDVG) is described herein. This family of devices are fabricated in such a way that it can conform to aircraft surface features while reducing radar returns from structural details. Vortex generators (VGs) are typically used to reattach or smooth gross flowfields over aircraft surfaces. By doing so, an airfoil or wing can maintain attached flow at higher angles of attack and/or higher lift coefficients than one without the VGs. These devices are also used to reattach and/or smooth flows that encounter crossflow-induced instabilities and/or adverse pressure gradients on the upper surfaces of wings or near aircraft boattails. Other uses include reduction of buffet, vibration, flutter, cavity resonance or general bluff-body pressure drag reduction. Although conventional rigid VGs do generate vortical aerodynamic structures, two major problems are often experienced: i.) the inability to conform to curved surfaces, ii.) the generation of radar cross-section spikes produced by the VGs themselves.

    Abstract translation: 这里描述了一系列雷达能量吸收可变形的低阻涡旋发电机（RAD-LDVG）。 该系列设备的制造方式使其能够符合飞机表面特征，同时减少结构细节的雷达回报。 涡轮发电机（VG）通常用于重新连接或平滑飞机表面上的总流场。 通过这样做，翼型或机翼可以在没有VG的情况下以更高的迎角和/或更高的升力系数保持附着的流动。 这些装置还用于重新连接和/或平滑流动，这些流在翼的上表面或飞机上的附近遇到交叉流引起的不稳定性和/或不利的压力梯度。 其他用途包括减少自助餐，振动，颤振，腔体共振或一般虚张声压减阻。 虽然常规的刚性VG确实产生涡旋空气动力学结构，但是经常遇到两个主要问题：i）不能符合弯曲表面，ii。）由VG本身产生的雷达横截面尖峰的产生。

    Aerial vehicle
    8.
    外观设计
    Aerial vehicle 有权
    空中飞行器

    公开(公告)号：USD776571S1

    公开(公告)日：2017-01-17

    申请号：US29529811

    申请日：2015-06-10

    Applicant: University of Kansas

    Designer： Ronald M. Barrett ,  Robert B. Honea ,  Richard B. Bramlette

    CPC classification number: A63H27/12 ,  A63H27/02 ,  A63H33/003 ,  B64C25/06 ,  B64C29/02 ,  B64C39/024 ,  B64C2201/021 ,  B64C2201/104 ,  B64C2201/108 ,  B64C2201/128 ,  B64C2203/00 ,  B64D27/02

    Abstract: An aerial vehicle capable of convertible flight from hover to linear flight includes a body having a longitudinal body axis, a plurality of forward wings, a plurality of aft wings, at least one motor, and at least three aerodynamic propulsors driven by the at least one motor. Each forward wing extends a forward wing plane. Each aft wing extends from an aft wing plane. The aerodynamic propulsors are mounted longitudinally between the plurality of forward wings and plurality of aft wings.

    Abstract translation: 能够从悬停到线性飞行的可转换飞行的飞行器包括具有纵向轴线的主体，多个前翼，多个后翼，至少一个马达以及由至少一个驱动的至少三个空气动力推进器 发动机。 每个前翼延伸一个前翼平面。 每个后翼从后翼平面延伸。 空气动力学推进器纵向安装在多个前翼和多个后翼之间。

    Radar energy absorbing deformable low drag vortex generator
    10.
    发明授权
    Radar energy absorbing deformable low drag vortex generator 有权

    公开(公告)号：US09677580B2

    公开(公告)日：2017-06-13

    申请号：US15227921

    申请日：2016-08-03

    Applicant: University of Kansas

    Inventor： Ronald M. Barrett

    IPC: F15D1/00 ,  B64C23/06 ,  G03G13/26 ,  G03G13/28

    CPC classification number: F15D1/004 ,  B64C21/02 ,  B64C23/06 ,  F15D1/003 ,  G03G13/26 ,  G03G13/283 ,  H01Q17/004 ,  H01Q17/008 ,  Y02T50/162

    Abstract: A family of Radar energy Absorbing Deformable Low Drag Vortex Generators (RAD-LDVG) is described herein. This family of devices are fabricated in such a way that it can conform to aircraft surface features while reducing radar returns from structural details. Vortex generators (VGs) are typically used to reattach or smooth gross flowfields over aircraft surfaces. By doing so, an airfoil or wing can maintain attached flow at higher angles of attack and/or higher lift coefficients than one without the VGs. These devices are also used to reattach and/or smooth flows that encounter crossflow-induced instabilities and/or adverse pressure gradients on the upper surfaces of wings or near aircraft boattails. Other uses include reduction of buffet, vibration, flutter, cavity resonance or general bluff-body pressure drag reduction. Although conventional rigid VGs do generate vortical aerodynamic structures, two major problems are often experienced: i.) the inability to conform to curved surfaces, ii.) the generation of radar cross-section spikes produced by the VGs themselves.

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