-
公开(公告)号：US20220252382A1
公开(公告)日：2022-08-11
申请号：US17606704
申请日：2020-04-24
申请人： University of Kansas
摘要： An aeromechanically stable sabot system that includes a center of gravity that is placed forward of an aerodynamic center of the aeromechanically stable sabot system when in steady-state flight. By placing the center of gravity forwards of the aerodynamic center, the sabot system exhibits positive longitudinal and directional stability. To illustrate, the sabot system and/or portions thereof will return to stable flight after being disturbed in pitch (vertically or about a transverse horizontal axis) or yaw (side to side or about a vertical axis) when traveling horizontally.
-
公开(公告)号：US11852447B2
公开(公告)日：2023-12-26
申请号：US17606704
申请日：2020-04-24
申请人： University of Kansas
CPC分类号： F42B14/061 , B64D1/04 , F42B10/30 , F42B10/64 , F42B14/08
摘要： An aeromechanically stable sabot system that includes a center of gravity that is placed forward of an aerodynamic center of the aeromechanically stable sabot system when in steady-state flight. By placing the center of gravity forwards of the aerodynamic center, the sabot system exhibits positive longitudinal and directional stability. To illustrate, the sabot system and/or portions thereof will return to stable flight after being disturbed in pitch (vertically or about a transverse horizontal axis) or yaw (side to side or about a vertical axis) when traveling horizontally.
-
公开(公告)号：US11767097B2
公开(公告)日：2023-09-26
申请号：US17047779
申请日：2019-04-16
申请人： University of Kansas
发明人： Ronald Martin Barrett , Lauren Nicole Schumacher , Patrick Ian McNamee , John Austin Haug , Joshua Donald Mudd , Dalton Bastiaan Prins , Nicholas Donald Werner
CPC分类号： B64C11/008 , B64C11/001 , B64C27/20 , B64C33/00 , F01D25/04 , F05D2260/96
摘要： A general mounting method for ducted fan propulsors is disclosed. This mounting method uses extremely slender stators that connect the duct ring to the propulsor which is mounted in the middle and drives the rotor, fan or propeller. The slender stators take the form of spokes and as such are so slender that the midspan stresses within the spokes are dominated by axial tension loads rather than the shear loads experienced by conventional stators. The spokes may have an aerodynamic shape and damping methods may be used to retard spoke vibrations and transmission of engine vibrations to the duct and force. The duct itself is also stiffened by the spoke arrangement, thereby reducing low frequency vibration modes.
-
公开(公告)号：US20240175666A1
公开(公告)日：2024-05-30
申请号：US18396605
申请日：2023-12-26
申请人： University of Kansas
CPC分类号： F42B14/061 , B64D1/04 , F42B10/30 , F42B10/64 , F42B14/08
摘要： An aeromechanically stable sabot system that includes a center of gravity that is placed forward of an aerodynamic center of the aeromechanically stable sabot system when in steady-state flight. By placing the center of gravity forwards of the aerodynamic center, the sabot system exhibits positive longitudinal and directional stability. To illustrate, the sabot system and/or portions thereof will return to stable flight after being disturbed in pitch (vertically or about a transverse horizontal axis) or yaw (side to side or about a vertical axis) when traveling horizontally.
-
公开(公告)号：US20210107623A1
公开(公告)日：2021-04-15
申请号：US17047779
申请日：2019-04-16
申请人： University of Kansas
发明人： Ronald Martin Barrett , Lauren Nicole Schumacher , Patrick Ian McNamee , John Austin Haug , Joshua Donald Mudd , Dalton Bastiaan Prins , Nicholas Donald Werner
摘要： A general mounting method for ducted fan propulsors is disclosed. This mounting method uses extremely slender stators that connect the duct ring to the propulsor which is mounted in the middle and drives the rotor, fan or propeller. The slender stators take the form of spokes and as such are so slender that the midspan stresses within the spokes are dominated by axial tension loads rather than the shear loads experienced by conventional stators. The spokes may have an aerodynamic shape and damping methods may be used to retard spoke vibrations and transmission of engine vibrations to the duct and force. The duct itself is also stiffened by the spoke arrangement, thereby reducing low frequency vibration modes.
-
-
-
-
搜索结果
5 条记录 (耗时 0.016 秒)
