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The Lynchpin—A Novel Geometry for Modular, Tangential, Omnidirectional Flight lynchpin——一种模块化、切向、全向飞行的新型几何结构
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2023-03-15 DOI: 10.4271/01-16-03-0018
Terrence Howard, C. Molter, C. Seely, Jeff Yee
A novel geometry for a six degrees of freedom (6DOF) unmanned aerial vehicle (UAV) rotary wing aircraft is introduced and a flight mechanical analysis is conducted for an aircraft built in accordance to the thrust vectors of the proposed geometry. Furthermore, the necessary mathematical operations and control schemes are derived to fly an aircraft with the proposed geometry. A system identification of the used propulsion system with the necessary thrust reversal in the form of bidirectional motors and propellers was conducted at a whirl tower. The design of the first prototype aircraft is presented as well as the first flight test results. It could be demonstrated that an aircraft with the thrust vectors oriented according to the proposed geometry works sufficiently and offers unique maneuvering capabilities that cannot be reached with a conventional design. The biggest limiting factor could be identified to be the latency resulting from the time needed to reverse the direction of rotation of the bidirectional propellers. Special operational handling considerations for a manually flown 6DOF vehicle are summarized, and different approaches to control such a vehicle are described. Different mission scenarios and applications for a single aircraft in this design are concluded. Due to the symmetrical properties of the proposed geometry, several aircraft can also be connected at different orientations in flight. Consequently, the possibilities of docking in midair are illustrated, and possible mission scenarios for a group of aircraft, working together collaboratively, are presented. Especially when operated autonomously in a group of aircraft, new possibilities evolve from the capability of the proposed geometry to bond in different orientations.
介绍了一种新的六自由度(6DOF)无人机旋翼飞机的几何形状,并根据该几何形状的推力矢量对一架飞机进行了飞行力学分析。此外,导出了必要的数学运算和控制方案,以飞行飞机提出的几何形状。在旋涡塔上进行了系统识别,并以双向电机和螺旋桨的形式进行了必要的推力反转。介绍了首架原型机的设计和首飞试验结果。可以证明,根据提出的几何形状定向推力矢量的飞机可以充分工作,并提供传统设计无法达到的独特机动能力。可以确定的最大限制因素是双向螺旋桨反转旋转方向所需的时间所导致的延迟。总结了手动飞行的6DOF车辆的特殊操作处理考虑因素,并描述了控制此类车辆的不同方法。总结了单架飞机的不同任务场景和应用情况。由于所提出的几何形状的对称特性,几架飞机也可以在飞行中以不同的方向连接。因此,说明了在空中对接的可能性,并提出了一组飞机协同工作的可能任务场景。特别是当在一组飞机中自主操作时,从所提出的几何形状的能力到不同方向的结合,新的可能性不断发展。
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引用次数: 0
Novel Approach to the Mechanism of Aerodynamic Forces 气动力机理的新方法
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2023-02-07 DOI: 10.4271/01-16-02-0015
Miguel A. Castillo Acero, Javier J. Doria
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引用次数: 0
Investigation on the Aerodynamic Performance of Different Aerofoils Using Vortex Generators 利用涡发生器对不同翼型气动性能的研究
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2023-01-25 DOI: 10.4271/01-16-02-0013
K. Balaji, Mayuri R. Gore, S. V. Khandal
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引用次数: 0
Framework for Initializing the Conceptual Design of Hypersonic Aircraft 高超声速飞行器概念设计初始化框架
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2023-01-18 DOI: 10.4271/01-16-02-0014
D. Wilson, R. Figliola, W. Strasser, J. Camberos
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引用次数: 0
Infrared Signature of Fixed and Variable Area C-D Nozzle of Aircraft Engine 航空发动机固定和变面积C-D喷管红外特征
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2023-01-02 DOI: 10.4271/01-16-02-0011
Nidhi Baranwal, S. Mahulikar
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引用次数: 0
Design and Experiment Research on Mass Trim Mechanism of Satellite 卫星质量调节机构设计与试验研究
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2023-01-01 DOI: 10.4271/01-16-01-0008
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引用次数: 0
Design and Development of Multipurpose Agriculture Drone Using Lightweight Materials 轻型材料多用途农用无人机的设计与开发
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2022-12-30 DOI: 10.4271/01-16-02-0012
K. Balaji, V. Babu, S. Sulthan
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引用次数: 1
Study of Sweepback Angles Criterion for Reusable Hypersonic Vehicle 可重复使用高超音速飞行器后掠角准则研究
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2022-12-02 DOI: 10.4271/01-16-02-0010
Rohan Shilwant, S. Mahulikar
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引用次数: 0
Prediction and Estimation of Propeller Drag 螺旋桨阻力的预测与估算
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2022-11-30 DOI: 10.4271/01-16-02-0009
Khadeeja Nusrath T. K., Dushyant Kaliyari, Jyothi Kumar Puttam, K. Madhu babu, C. Arshad Shameem, Shikhar Jaiswal A, S. Sajjan, T. N. Venkatesh, A. Pashilkar
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引用次数: 0
3D-Printed Antenna Design Using Graphene Filament and Copper Tape for High-Tech Air Components 石墨烯丝和铜带用于高科技空气部件的3D打印天线设计
IF 0.4 Q4 ENGINEERING, AEROSPACE Pub Date : 2022-11-25 DOI: 10.4271/01-16-02-0008
Emine Avsar Aydin, M. Bicer, Mehmet Erman Mert, Ceyla Özgür, Başak Doğru Mert
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引用次数: 1
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SAE International Journal of Aerospace
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