Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Aeronautical Vehicles (13)
- Navigation, Guidance, Control and Dynamics (13)
- Automotive Engineering (11)
- Aviation (9)
- Navigation, Guidance, Control, and Dynamics (9)
-
- Mechanical Engineering (8)
- Propulsion and Power (7)
- Heat Transfer, Combustion (6)
- Other Aerospace Engineering (4)
- Space Vehicles (4)
- Aerodynamics and Fluid Mechanics (3)
- Military Vehicles (2)
- Animal Sciences (1)
- Artificial Intelligence and Robotics (1)
- Biology (1)
- Computer Sciences (1)
- Life Sciences (1)
- Ornithology (1)
- Physical Sciences and Mathematics (1)
- Keyword
-
- Optimal control (2)
- Autoignition; Cool flames; Microgravity; Thermokinetic oscillations; Wang-Mou model (1)
- Cool flame; Low-temperature reaction; Natural convection; Autoignition; Partial gravity (1)
- Cool flames; Flame speed; Low-temperature combustion; Reducedgravity (1)
- Cool flames; Microgravity; Reaction-diffusion; Static reactor; Two-stage ignition (1)
- Publication Year
Articles 31 - 34 of 34
Full-Text Articles in Aerospace Engineering
Cool Flames In Propane-Oxygen Premixtures At Low And Intermediate Temperatures At Reduced-Gravity, Howard Pearlman, Michael R. Foster, Devrez Karabacak
Cool Flames In Propane-Oxygen Premixtures At Low And Intermediate Temperatures At Reduced-Gravity, Howard Pearlman, Michael R. Foster, Devrez Karabacak
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
No abstract provided.
Aspects Of Control For A Parafoil And Payload System, Nathan Slegers, Mark Costello
Aspects Of Control For A Parafoil And Payload System, Nathan Slegers, Mark Costello
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
A parafoil controlled by parafoil brake deflection offers a lightweight and space-efficient control mechanism for autonomous placement of air-dropped payloads to specified ground coordinates. The work reported here investigates control issues for a parafoil and payload system with left and right parafoil brakes used as the control mechanism. It is shown that parafoil and payload systems can exhibit two basic modes of lateral control, namely,roll and skid steering. These two modes of lateral steering generate lateral response in opposite directions. For example, a roll steer configuration turns left when the right parafoil brake is activated, whereas a skid steer configuration …
Comparison Of Measured And Simulated Motion Of A Controllable Parafoil And Payload System, Nathan Slegers, Mark Costello
Comparison Of Measured And Simulated Motion Of A Controllable Parafoil And Payload System, Nathan Slegers, Mark Costello
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
For parafoil and payload aircraft, control is affected by changing the length of several rigging lines connected to the outboard side and rear of the parafoil leading to complex changes in the shape and orientation of the lifting surface. Flight mechanics of parafoil and payload aircraft most often employ a 6 or 9 DOF representation with the canopy modeled as a rigid body during flight. The effect of control inputs is idealized by the deflection of parafoil brakes on the left and right side of the parafoil. Using a small parafoil and payload aircraft, glide rates and turn performance were …
On The Use Of Rigging Angle And Canopy Tilt For Control Of A Parafoil And Payload System, Nathan Slegers, Mark Costello
On The Use Of Rigging Angle And Canopy Tilt For Control Of A Parafoil And Payload System, Nathan Slegers, Mark Costello
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
Controllable parafoil and payload aircraft are controlled with downward deflection of left and right parafoil brakes. Lateral control is obtained by differential deflection while longitudinal control is created by collective deflection of the left and right side parafoil brakes. The work reported considers an alternative method to control parafoil and payload air vehicles by tilting the parafoil canopy for lateral control and changing rigging angle for longitudinal control. Using a nonlinear 9 degree of freedom simulation model, it is shown that canopy tilt provides a powerful lateral control mechanism and rigging angle provides a viable longitudinal control mechanism.