Browsing AE Research Publications by Title
Now showing items 94-113 of 182
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Kalman-Filter-Based Adaptive Control: flight testing on general aviation aircraft
(American Institute of Aeronautics and Astronautics, Inc., 2017-09)Sensor noise and turbulence effects have been prevalent issues in control system design. Although a control system may respond well to “clean” input signals and commands in simulation, this may not be the case when a ... -
Kinematics analysis of the chipping process using the circular diamond saw blade
(American Society of Mechanical Engineers (ASME), 1999-05)One of the primary goals in the design of a diamond blade cutting system is to reduce the cutting force. By understanding the fundamentals of the kinematics of the sawing operation, these forces can be lowered and even ... -
Learning quantum annealing
(Rinton Press, Inc., 2017-05-01)We propose and develop a new procedure, whereby a quantum system can learn to anneal to a desired ground state. We demonstrate successful learning to produce an entangled state for a two-qubit system, then demonstrate ... -
Life of composites under variable-amplitude fatigue using ST method
(American Institute of Aeronautics and Astronautics Inc, AIAA, 2021-01)The primary goal in a damage-tolerance certification program is to avoid catastrophic failure due to fatigue, corrosion, or accidental damage throughout the operational life of the aircraft. The damage-tolerance philosophy ... -
Local bending containment in sandwich panels with sub-surface core damage
(Sage, 2008-05-02)A simple repair technique to contain the local facesheet bending in sandwich panels with sub-surface core damage has been explored using experiments. The strategic filling of honeycomb cells in the damage region using ... -
Low thrust orbit-raising using non-singular orbital elements and proximity quotient approach
(Univelt, Inc., 2015)Recent years have shown a growing interest in the space industry in all-electric satellites. Mission designers analyzing the optimal deployment options for all electric satellites need to consider three important metrics: ... -
Low-frequency noise control using layered granular aerogel and limp porous media
(Institute of Noise Control Engineering, 2021-08-01)The acoustic absorption of granular aerogel layers with a granule sizes in the range of 2 to 40 μm is dominated by narrow-banded, high absorption regions in the low-frequency range and by reduced absorption values at higher ... -
Low-thrust orbit-raising trajectories considering eclipse constraints
(Univelt, Inc., 2015)Many-revolution electric orbit-raising trajectories make numerous passages through the shadow of the Earth. The paper presents a new algorithm to determine the minimum-time trajectory of the spacecraft during orbit-raising. ... -
Low-velocity impact and damage process of composite laminates
(SAGE Publications, 2002-04)Several important issues regarding damage simulation of composite laminates due to low velocity impact were investigated including contact law, damage initiation and the corresponding change of stiffness, and damping. ... -
Machine learning applied to programming quantum computers
(American Institute of Aeronautics and Astronautics, 2019-01-06)We apply machine learning to “program” quantum computers, both in simulation and in experimental hardware. A major difficulty in quantum computing is developing effective algorithms that can be programmed on a quantum ... -
Minimizing errors from linear and nonlinear weights of WENO scheme for broadband applications with shock waves
(Elsevier, 2013-03-29)Improvements in the numerical algorithm for the dynamics of flows that involve discontinuities and broadband fluctuations simultaneously are proposed. These two flow features suggest numerical strategies of a paradoxical ... -
Minimizing proton displacement damage dose during electric orbit raising of satellites
(American Institute of Aeronautics and Astronautics, 2016-04)Although electric propulsion systems have been used in deep space missions for performing interplanetary transfers, their use has primarily been restricted to station-keeping purposes for Earth-orbiting satellites. ... -
Minimum-fuel electric orbit-raising of telecommunication satellites subject to time and radiation damage constraints
(IEEE, 2014-06-04)The capability of a Geostationary satellite to perform electric orbit-raising enables the development of all-electric satellites. Key challenges to the realization of electric deployment of satellites to the Geostationary ... -
Mission scenario analysis for all-electric satellites
(American Institute of Aeronautics and Astronautics, Inc., 2018-01-08)In this paper, we consider the problem of orbit-raising of all-electric satellites deployed in the geosynchronous equatorial orbit (GEO). We present an optimization framework that incorporates a novel dynamic model of a ... -
Modified state observer based adaptation of a general aviation aircraft - simulation and flight test
(American Institute for Aeronautics and Astronautics, 2014-01)This paper presents some issues encountered while flight testing a Model Reference Adaptive dynamic inverse controller (MRAC), on a General Aviation (GA) fly-by-wire test bed. Adaptation was replaced with a Modified ... -
Modified State Observer based adaptive control law design for the Black Kite MAV
(IEEE, 2014-06-04)This paper presents the design and simulation of a Modified State Observer (MSO) based adaptive control law, developed by Balakrishnan, for a Micro Aerial Vehicle (MAY). The MSO allows higher adaptive gains than other ... -
MPI/Open-MP hybridization of higher order WENO scheme for the incompressible Navier-Stokes equations
(American Institute of Aeronautics and Astronautics, 2015-01)With the contemporary emerging transition for the past two decades in high performance computing (HPC) towards clusters of nodes, it is possible to obtain an efficiently scalable CFD code by hybridization of Message ... -
Multimodal combination of text and image tweets for disaster response assessment
(CEUR-WS, 2022-07-06)Social media platforms are a vital source of information in times of natural and man-made disasters. People use social media to report updates about injured or dead people, infrastructure damage, missing or found people ... -
Multiqubit entanglement of a general input state
(Rinton Press, Inc., 2013-01)Measurement of entanglement remains an important problem for quantum information. We present the design and simulation of an experimental method for an entanglement indicator for a general multiqubit state. The system can ... -
Multispectral deep learning models for wildfire detection
(CEUR-WS, 2022-07-06)Aided by wind, all it takes is one ember and few minutes to create wildfire. Wildfires are growing in frequency and size due to climate change. Wildfires and its consequences are one of the major environmental concerns. ...