Research papers

Geometric Adaptive Control with Neural Networks for a Quadrotor UAV in Wind fields

This paper proposes a geometric adaptive controller for a quadrotor unmanned aerial vehicle with artificial neural networks. It is assumed that the dynamics of a quadrotor is disturbed by arbitrary, unstructured forces a…

Topology-Reconfigurable Fault-Tolerant LLC Converter With High Reliability and Low Cost for More Electric Aircraft

Thanks to the advantages of high fuel efficiency and low emission, more electric aircraft (MEA) has attracted increasing attention in recent years.

Meteorological Impacts on Commercial Aviation Delays and Cancellations in the Continental United States

Weather creates numerous operational and safety hazards within the National Airspace System (NAS). In 2014, extreme weather events attributed 4.3% to the total number of delay minutes recorded by the Bureau of Transporta…

Cabin Safety Research: Evacuation in Smoke and Reduced Visibility

CAMI cabin-evacuation laboratory studies on passenger flow rates, exit-row selection, and crew commands under low-visibility (smoke) conditions.

Learning Extreme Hummingbird Maneuvers on Flapping Wing Robots

Biological studies show that hummingbirds can perform extreme aerobatic maneuvers during fast escape. Given a sudden looming visual stimulus at hover, a hummingbird initiates a fast backward translation coupled with a 18…

Technical Note for "A Geodesic Approach for the Control of Tethered Quadrotors"

This technical note focuses on the control of a quadrotor unmanned aerial vehicle (UAV) tethered to the ground. The control objective is to stabilize the UAV to the desired position while ensuring that the cable remains …

Caregivers’ burden and fatigue during and after patients’ treatment with concomitant chemoradiotherapy for locally advanced head and neck cancer: a prospective, observational pilot study

PurposeKnowledge of caregivers’ burden and fatigue before and after patients’ treatment for locally advanced head and neck cancer is scarce.

Heat and water vapor transfer in the wake of a falling ice sphere and its implication for secondary ice formation in clouds

We perform direct numerical simulations of the settling of an ice sphere in an ambient fluid accounting for heat and mass transfer with the aim of studying in a meteorological context the case of falling graupel in humid…

Security-Aware Synthesis Using Delayed-Action Games

Stochastic multiplayer games (SMGs) have gained attention in the field of strategy synthesis for multi-agent reactive systems. However, standard SMGs are limited to modeling systems where all agents have full knowledge o…

Hierarchical non-linear control for multi-rotor asymptotic stabilization based on zero-moment direction

We consider the hovering control problem for a class of multi-rotor aerial platforms with generically oriented propellers. Given the intrinsically coupled translational and rotational dynamics of such vehicles, we first …

Civil aviation safety evaluation based on deep belief network and principal component analysis

Abstract Civil aviation in modern industries is becoming increasingly automatic, precise, and efficient. Serious accidents and unsafe incidents are used to describe and investigate the safety level.

Transition flight control room automation

The Workstation Prototype Laboratory is currently working on a number of projects which can have a direct impact on ground operations automation.

Improving situation awareness displays for air traffic controllers

Situation awareness displays play a critical role in the performance of air traffic controllers, but present versions are far from ideal.

EMS helicopter incidents reported to the NASA Aviation Safety Reporting System

The objectives of this evaluation were to: Identify the types of safety-related incidents reported to the Aviation Safety Reporting System (ASRS) in Emergency Medical Service (EMS) helicopter operations; Describe the ope…

Trajectory Design for Cellular-Connected UAV Under Outage Duration Constraint

In this paper, we study the trajectory design for a cellular-connected unmanned aerial vehicle (UAV) with given initial and final locations, while communicating with the ground base stations (GBSs) along its flight.

Impact of Engine Failure Constraints on the Initial Sizing of Hybrid-Electric GA Aircraft

Potential advantages of hybrid-electric aircraft are fuel savings, lower emissions, and reduced noise. Since these aircraft generally apply multiple power sources, they can also be designed to sustain flight if certain p…

Prioritisation of factors contributing to human error for airworthiness management strategy with ANP

Aeroecology meets aviation safety: early warning systems in Europe and the Middle East prevent collisions between birds and aircraft

The aerosphere is utilized by billions of birds, moving for different reasons and from short to great distances spanning tens of thousands of kilometres.

Development of a Statistical Model to Predict Australian Flight Students’ Valuation of Aviation Safety

This study was a quantitative approach to explore whether certain demographic factors, exposure to safety training, flight experience, and engagement could be used to develop a predictive model for how Australian flight …

The Effect of Experiential Education on Pilots' VFR into IMC Decision-Making

In aviation, safety is always a primary consideration, and this is especially true during a pilot’s flight training to instill that safety mentality.

Aircraft Interior Design And Satisfaction For Different Activities; A New Approach Toward Understanding Passenger Experience

Among airlines and aircraft manufacturers there is much attention for passenger experience. However, there is not much literature on how the activities of passengers can be supported by the aircraft interior.

3D TEXTILE PREFORMS AND COMPOSITES FOR AIRCRAFT STRCUTURES: A REVIEW

Over the last decades, the development of 3D textile composites has been driven the structures developed to overcome disadvantages of 2D laminates such as the needs of reducing fabrication cost, increasing through-thickn…

FE Modeling Methodology for Load Analysis and Preliminary Sizing of Aircraft Wing Structure

It is a critical part at the basic design phase of aircraft structural design to build a finite element model and it will have a direct impact on time and cost for airframe structure development.

Low Level Turbulence Detection For Airports

Abstract—— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Despite many advances in on-board and ground based warning systems.

Crew Resource Management for Large Unmanned Aircraft Systems Operations

Abstract The author explored the application of crew resource management (CRM) principles to commercial flight operations conducted by large unmanned aircraft systems (UAS).

Speech Interfaces and Pilot Performance: A Meta-Analysis

As the aviation industry modernizes, new technology and interfaces must support growing aircraft complexity without increasing pilot workload.

Computational Study of Flow Interactions over a Close Coupled Canard-Wing on Fighter

There have been many attempts to improve the flying performance of a fighter. By modifying the flow that occurs along the fuselage is expected to improve the performance of the aircraft.

Design and Simulation of Regional Navigation Constellation with Optimized Mean DOP based on Hybrid GEO and IGSO Satellites

In this article, achieving an optimal layout of satellite constellation has been investigated with the aim of navigation (positioning) and with the least amount of error in a region coverage.

Urban flow and small unmanned aerial system operations in the built environment

The Federal Aviation Administration (FAA) has put forth a set of regulations (Part 107) that govern small unmanned aerial system (sUAS) operations.

Strategies in Developing an Aviation & Aerospace Skill Ecosystem for the State of Telangana, India – Case Study of TASK -Telangana Academy for Skill and Knowledge

The aviation & aerospace sector in India has been expanding and growing through partnerships and new research facilities, thereby encouraging more players to invest and optimize the manufacturing process.

MINDSPACE and Development of Organizational Culture in Aviation Safety Management

Abstract The organization’s role in establishing a culture fertile for safety development, risk management and mitigation is paramount.

A Tale of Two Airlines: A Comparative Case Study of High-Road versus Low-Road Strategies in Customer Service and Reputation Management

Does customer service - good or bad - really matter? Customer surveys from Ryanair and Southwest Airline passengers were examined to determine their perceptions regarding customer service for the period of 2012-2013.

MRO Cybersecurity SWOT

This article intended to identify gaps in the safety management system (SMS) framework when it comes to dealing with cyber risks and hazards in the maintenance, repair, and overhaul (MRO) industry.

Effects of the Pilot Shortage on the Regional Airline Industry: A 2023 Forecast

In the next 5 years and beyond, it is predicted that the U.S. airline industry will face a substantial pilot shortage. The impact of this pilot shortage on regional airlines has not yet been examined.

Satellite Maintenance: An Opportunity to Minimize the Kessler Effect

Recently, there has been an emphasis on the growing problem of orbital debris. While the advantages of placing satellites into space are numerous, advances in satellite technology combined with the growth of the industry…

Ultrafine aluminium: Quench collection of agglomerates

Combustion of aluminized solid propellants exhibits phenomena associated with accumulation, agglomeration, ignition, and combustion of ultra-fine aluminium particles.

Small Unmanned Aircraft System Operator Compliance with Visual Line of Sight Requirements

Operating small unmanned aircraft systems (sUAS) beyond visual line of sight (BVLOS) without appropriate waivers and risk mitigations presents a serious hazard to manned aircraft and other users of the National Airspace …

Difference in attitudes toward Crew Resource Management based on nationality

The E-3A Airborne Early Warning and Control System aircraft operates with multinational crewmembers from 15 different nations on 12 different aircrew positions.

Effects of a hand luggage guiding system on airplane boarding time and passenger experience

This research investigates whether a hand luggage guiding system in overhead bins decreases boarding time and improves boarding experience during aircraft boarding process.

A New Method for the Prediction of the Downwash Angle Gradient

A new method for the prediction of the downwash angle gradient due to aircraft wings across the span of an aft horizontal tail in the incompressible regime is presented.

Comparison of Fixed-Wing Unmanned Aircraft Systems (UAS) for Agriculture Monitoring

Florida citrus growers need inexpensive methods to observe citrus plants to detect disease and stress consistently. Health vegetation indices, such as the Normalized Difference Vegetation Index (NDVI) collected from Unma…

On moist air and dew points

The basic thermodynamic theories of terrestrial dry and moist air are summarized. Atmospheric water vapor-liquid, vapor-ice and liquid-ice phase transitions using Clapeyron and Clausius-Clapeyron equations are presented …

A new model for lifting condensation levels estimation

Knowledge of and the ability to predict lifting condensation levels (LCL) is important ingredient in weather predictions, cloud formation, planetary albedo and Earth’s energy balance.

Big Five Technologies in Aeronautical Engineering Education: Scoping Review

The constant demands that technology creates in aerospace engineering also influence education. The identification of the technologies with practical application in aerospace engineering is of current interest to decisio…

In-flight Wingtip Folding: Inspiration from the XB-70 Valkyrie

Wingip folding can be used to extend aircraft wingspan, allowing designers to take advantage of reduced induced drag whilst respecting ground operational limitations.

Brand Awareness, Purchase Intention and Price Premium of International Airlines Operating between Australia and the United Kingdom

Brand equity has a profound impact on the pricing and sales of consumer products and services. Inspired by existing literature on customer-based brand equity in various domains, this study examines brand awareness (a dim…

Simulations on Optimization of Liquid Spray Burners & Operating Parameters

Spray burners form an essential part of any liquid propulsion system as they are responsible for injecting, atomizing, mixing and combusting the liquid fuel.

The application of Signal Detection Theory principles to aircraft certification

This paper presents the application of Signal Detection Theory (SDT) concepts to the certification of optional systems that provide operational or system safety benefits.

Fatigue In Collegiate Aviation

Flight training has received little attention in fatigue research. Only transfers of knowledge gained in commercial and military aviation have been applied to general aviation without bridging the gap to the training env…

Design and Realization of an Unmanned Aerial Rotorcraft Vehicle Using Pressurized Inflatable Structure

Unmanned aerial rotorcraft vehicles have many military, commercial and civil applications. There is a necessity to advance the performance on several ranges of rotorcraft for using these vehicles successfully in the expa…