Flight Testing and Response Characteristics of a Variable Gull-Wing Morphing Aircraft

2004 ◽  
Author(s):  
Mujahid Abdulrahim ◽  
Rick Lind
Keyword(s):  
Flight Testing ◽  
Morphing Aircraft ◽  
Response Characteristics ◽  
Wing Morphing

Longitudinal Dynamics Response of M-Wing Morphing Aircraft

2012 ◽  
Vol 538-541 ◽  
pp. 2627-2630
Author(s):  
Lai Bin Xu
Keyword(s):  
Vortex Lattice ◽  
Equations Of Motion ◽  
Lattice Method ◽  
Morphing Aircraft ◽  
Simulation Methodology ◽  
Vortex Lattice Method ◽  
Longitudinal Dynamic ◽  
Aerodynamic Properties ◽  
Dynamics Response ◽  
Wing Morphing

A simulation methodology suitable for morphing wing aircraft is presented, accounting for the changes in both inertial and aerodynamic properties. The aerodynamics was generated with vortex lattice method and solved concurrently with 6DOF nonlinear extended equations of motion. Due to the wing morphing, there are 4 additional forces and moments exhibiting in the extended equations of motion. The simulation mythology was applied to M-wing morphing aircraft, and the longitudinal dynamic response was analyzed with the wing morphing symmetrically. The results show that the additional forces and moments influence the flight dynamic considerably

scholarly journals Adaptive Wing Morphing Strategy and Flight Control Method of a Morphing Aircraft Based on Reinforcement Learning

2019 ◽  
Vol 37 (4) ◽  
pp. 656-663
Author(s):  
Binbin Yan ◽  
Yong Li ◽  
Pei Dai ◽  
Muzeng Xing
Keyword(s):  
Reinforcement Learning ◽  
Flight Control ◽  
Control Method ◽  
Sliding Mode ◽  
Normal Load ◽  
Aerodynamic Characteristics ◽  
Morphing Aircraft ◽  
Adaptive Wing ◽  
Aerodynamic Parameters ◽  
Wing Morphing

The morphing aircraft can change different wing shapes or geometries to achieve the optimal flight performance according to various mission scenarios. In this paper, DATCOM is used to calculate aerodynamic parameters based on Firebee UAV morphing aircraft with different wing configurations and analyze aerodynamic characteristics. A novel adaptive wing morphing strategy for morphing aircraft based on reinforcement learning method is proposed. This method can highly meet the demand of keeping optimal performance in multiple flight conditions, and the adaptive wing morphing strategy, three-loop normal load altitude controller and sliding mode velocity controller can together make sure stability of morphing aircraft during morphing process with good tracking performance.

scholarly journals Flight Testing of Novel Compliant Spines for Passive Wing Morphing on Ornithopters

2013 ◽  
Author(s):  
Aimy Wissa ◽  
Nelson Guerreiro ◽  
Jared A. Grauer ◽  
James Hubbard ◽  
Mary Frecker ◽  
...  
Keyword(s):  
Flight Testing ◽  
Wing Morphing
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