Inertial redirection of thrust forces for flight stabilization

Demir, Alican
Ankaralı, Mustafa Mert
Dhyr, Jonathan
Morgansen, Kristi
Daniel, Thomas
Cowan, Noah
Insects are highly maneuverable fliers. Naturally, engineers have focused much of their efforts on understanding the role of insect wing design and actuation for maneuvering and control of bio-inspired micro air vehicles. However, many insects exhibit strong visually mediated abdominal reflexes. The hawkmoth, Manduca sexta, has a particularly large abdomen, and recent evidence suggests that these visuo-abdominal reflexes are used to inertially redirect thrust forces for control. In a biologically inspired control framework, we show that the stability of a quadrotor can be categorically improved by redirecting aerodynamic forces using appendage inertia.


AHMED, TAWFIQ; Kurtuluş, Dilek Funda; Department of Aerospace Engineering (2022-2)
Almost all the insects and birds fly at very low Reynolds numbers. Therefore, to design micro air vehicles (MAVs), a study of airfoils and wings at low Reynolds numbers is essential. Unsteady flow behavior at low Reynolds numbers can vary for different airfoils depending on their camber, maximum thickness, or maximum camber position. Numerical simulations of cambered airfoils (NACA 1412, NACA 2412, NACA 3412, NACA 4412) at Re = 1000 are conducted in the current study to understand the camber effect on the u...
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Nowadays, high portion of tactical missiles use gimbaled seekers. For accurate target tracking, the platform where the gimbal is mounted must be stabilized with respect to the motion of the missile body. Line of sight stabilization is critical for fast and precise tracking and alignment. Although conventional PID framework solves many stabilization problems, it is reported that many PID feedback loops are poorly tuned. In this paper, a recently introduced approach, proxy-based sliding mode control to a line...
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Helicopters are widely used aircrafts for several purposes. Main Rotor of a Helicopter creates necessary flight forces for performing flight operation. Orientation of a Helicopter Rotor System is determined and controlled manually by pilot and automatically by automatic control system via hydraulically operated flight control actuators. In this research, a novel electrohydraulically operated helicopter main rotor control system is mathematically designed and developed to improve overall performance of contr...
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Gün, Mert; Sezer Uzol, Nilay; Department of Aerospace Engineering (2019)
Guided munitions, also known as gliding missiles, are not stand alone systems; rather, they are converted from a dummy body with the help of guidance kits. Guided munitions are used in great number during military operations, unlike air-to-air or cruise missiles. Guided munitions can be classified in two main sub-categories. First group provides guidance and stability with use of strakes. These type of missiles used for relatively short ranges. Second group has wings instead of strakes and effective in larg...
Inertial-navıgation-system aiding by combining data link and seeker measurements
Ata, Emre Han; Konukseven, Erhan İlhan; Erer, Koray Savaş; Department of Mechanical Engineering (2022-2)
Missiles are equipped with seekers to increase the probability of intercepting the target. A gimballed seeker provides gimbal angles and rates used in a guidance law. Conventionally, the seeker is used at the terminal phase only. However, the seeker can also be used at the midcourse phase to eliminate inertial navigation system (INS) errors. Some missiles are also equipped with the data link to communicate with the platform. This data link provides data such as the image acquired by the seeker to the platfo...
Citation Formats
A. Demir, M. M. Ankaralı, J. Dhyr, K. Morgansen, T. Daniel, and N. Cowan, Inertial redirection of thrust forces for flight stabilization. 2012, p. 246.