Research papers
5,883 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,269 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
5,883 matches
- arXiv 2026 ARXIV arXiv preprint
Model Reference Adaptive Control For Gust Load Allevation of Nonlinear Aeroelastic
Model Reference Adaptive Control based on Lyapunov stability theory is developed for gust load alleviation of nonlinear aeroelastic systems.
- NASA NTRS 2026 LaRC Technical Memorandum (TM)
Proof Test Screening as a Mitigation Against Stress Rupture Failure of Carbon Fiber Composite Overwrapped Pressure Vessels (COPVs)
Proof testing of composite overwrapped pressure vessels (COPVs) is performed to screen vessels with low burst strength to mitigate the potential for failure at lower than operational pressures.
- arXiv 2026 ARXIV arXiv preprint
Distributed Adaptive Control for DC Power Distribution in Hybrid-Electric Aircraft: Design and Experimental Validation
To reduce CO2 emissions and tackle increasing fuel costs, the aviation industry is swiftly moving towards the electrification of aircraft.
- arXiv 2026 ARXIV arXiv preprint
Physics-informed offline reinforcement learning eliminates catastrophic fuel waste in maritime routing
International shipping produces approximately 3% of global greenhouse gas emissions, yet voyage routing remains dominated by heuristic methods.
- arXiv 2026 ARXIV arXiv preprint
EAAE: Energy-Aware Autonomous Exploration for UAVs in Unknown 3D Environments
Battery-powered multirotor unmanned aerial vehicles (UAVs) can rapidly map unknown environments, but mission performance is often limited by energy rather than geometry alone.
- arXiv 2026 ARXIV arXiv preprint
Wave propagation through periodic arrays of freely floating rectangular floes
The two-dimensional propagation of small-amplitude waves through an infinite periodic array of freely-floating rectangular floes is considered under the assumptions of inviscid linearised wave theory.
- arXiv 2026 ARXIV arXiv preprint
Distributional Uncertainty and Adaptive Decision-Making in System Co-design
Complex engineered systems require coordinated design choices across heterogeneous components under conflicting objectives and uncertain specifications.
- arXiv 2026 ARXIV arXiv preprint
Safety-aware Goal-oriented Semantic Sensing, Communication, and Control for Robotics
Wirelessly-connected robotic systems empower robots with real-time intelligence by leveraging remote computing resources for decision-making.
- arXiv 2026 ARXIV arXiv preprint
Rooftop Wind Field Reconstruction Using Sparse Sensors: From Deterministic to Generative Learning Methods
Real-time rooftop wind-speed distribution is important for the safe operation of drones and urban air mobility systems, wind control systems, and rooftop utilization.
- arXiv 2026 ARXIV arXiv preprint
ISAC-Enabled Multi-UAV Collaborative Target Sensing for Low-Altitude Economy
Integrated sensing and communication (ISAC) has attracted growing research interests to facilitate the large-scale development of the low-altitude economy (LAE).
- arXiv 2026 ARXIV arXiv preprint
Multi-Agent Reinforcement Learning for UAV-Based Chemical Plume Source Localization
Undocumented orphaned wells pose significant health and environmental risks to nearby communities by releasing toxic gases and contaminating water sources, with methane emissions being a primary concern.
- arXiv 2026 ARXIV arXiv preprint
Direct-to-Device Connectivity for Integrated Communication, Navigation and Surveillance
Sixth-generation (6G) communication systems are expected to support direct-to-device (D2D) connectivity, enabling standard user equipment (UE) to seamlessly transition to non-terrestrial network (NTN), particularly satel…
- arXiv 2026 ARXIV arXiv preprint
Robust Co-design Optimisation for Agile Fixed-Wing UAVs
Co-design optimisation of autonomous systems has emerged as a powerful alternative to sequential approaches by jointly optimising physical design and control strategies.
- arXiv 2026 ARXIV arXiv preprint
Droplet impact on a superhydrophobic surface under shear airflow: Lattice Boltzmann simulations and scaling analyses
Droplet impact in airflow environments is ubiquitous in nature and industry, making the understanding of this multiphase behavior crucial for technologies such as anti-icing and spray cooling.
- arXiv 2026 ARXIV arXiv preprint
Butter on a hot pan: self-regulating dynamics of melt-lubricated sliding
When solids melt while sliding down heated inclines, their motion is governed by a complex coupling between heat transfer, phase change, gravity and viscous dissipation.
- arXiv 2026 ARXIV arXiv preprint
Trajectory Tracking Control Design for Autonomous Helicopters with Guaranteed Error Bounds
This paper presents a systematic framework for computing formally guaranteed trajectory tracking error bounds for autonomous helicopters based on Robust Positive Invariant (RPI) sets.
- arXiv 2026 ARXIV arXiv preprint
The Vertical Challenge of Low-Altitude Economy: Why We Need a Unified Height System?
The explosive growth of the low-altitude economy, driven by eVTOLs and UAVs, demands a unified digital infrastructure to ensure safety and scalability.
- arXiv 2026 ARXIV arXiv preprint
Right in Time: Reactive Reasoning in Regulated Traffic Spaces
Exact inference in probabilistic First-Order Logic offers a promising yet computationally costly approach for regulating the behavior of autonomous agents in shared traffic spaces.
- arXiv 2026 ARXIV arXiv preprint
When Connectivity Is Not Enough: Cross-Layer Attacks on UAV C2 over 5G
Beyond Visual Line of Sight (BVLOS) unmanned aerial vehicle (UAV) operations increasingly use 5G standalone (SA) networks for command and control (C2) between the UAV and the ground control station (GCS).
- arXiv 2026 ARXIV arXiv preprint
Super-resolution of turbulent reacting flows on complex meshes using graph neural networks
State-of-the-art deep learning models have been extensively utilized to reconstruct small-scale structures from coarse-grained data in turbulent flows.
- arXiv 2026 ARXIV arXiv preprint
Geometric Look-Angle Shaping Strategy for Enclosed Inspection
This paper introduces inspection through GLASS, a Geometric Look-Angle Shaping Strategy for enclosed regions using unmanned aerial vehicles.
- arXiv 2026 ARXIV arXiv preprint
Do Diffusion Models Dream of Electric Planes? Discrete and Continuous Simulation-Based Inference for Aircraft Design
In this paper, we generate conceptual engineering designs of electric vertical take-off and landing (eVTOL) aircraft. We follow the paradigm of simulation-based inference (SBI), whereby we look to learn a posterior distr…
- arXiv 2026 ARXIV arXiv preprint
Robust Adaptive MPC in the Presence of Nonlinear Time-Varying Uncertainties: An Uncertainty Compensation Approach
This paper introduces an uncertainty compensation-based robust adaptive model predictive control (MPC) framework for linear systems with nonlinear time-varying uncertainties.
- arXiv 2026 ARXIV arXiv preprint
Integrated Flight and Propulsion Control for Fixed-Wing UAVs via Thrust and Disturbance Compensation
This paper investigates the position-tracking control problem for fixed-wing unmanned aerial vehicles (UAVs) equipped with a turbojet engine via an integrated flight and propulsion control scheme.
- arXiv 2026 ARXIV arXiv preprint
Particle, kinetic and hydrodynamic models for sea ice floes. Part II: Rotating floes with environmental forces
This paper builds on the multiscale modeling framework introduced in Part I (Deng and Ha, Physica D: Nonlinear Phenomena 483 (2025) 134951) for sea-ice floe dynamics with non-rotating floes to the case with rotational fl…
- arXiv 2026 ARXIV arXiv preprint
A minimal wake-vortex model explains formation flight of flapping birds
Collective patterns of motion emerge across biological taxa: insects swarm, fish school, and birds flock. In particular, many large migratory bird species form distinctly ordered V-shaped formations, which experiments an…
- arXiv 2026 ARXIV arXiv preprint
High-Altitude Platforms in the Low-Altitude Economy: Bridging Communication, Computing, and Regulation
The Low-Altitude Economy (LAE) is rapidly emerging as a new technological and industrial frontier, with unmanned aerial vehicles (UAVs), electric vertical takeoff and landing (eVTOL) aircraft, and aerial swarms increasin…
- arXiv 2026 ARXIV arXiv preprint
Systematic Analysis of Coupling Effects on Closed-Loop and Open-Loop Performance in Aerial Continuum Manipulators
This paper investigates two distinct approaches to the dynamic modeling of aerial continuum manipulators (ACMs): the decoupled and the coupled formulations.
- arXiv 2026 ARXIV arXiv preprint
RotorSuite: A MATLAB/Simulink Toolbox for Tilt Multi-Rotor UAV Modeling
In recent years, aerial platforms have evolved from passive flying sensors into versatile, contact-aware robotic systems, leading to rapid advances in platform design.
- NASA NTRS 2026 GRC Contractor Report (CR)
Icing Physics Studies Using the 3D SIDRM Test Article: 2023 Icing Tests Analysis
In-flight icing is an important safety issue and is a factor that affects aircraft design and performance. Newer regulations are driving a need for improvements in airframe and engine icing simulation capability.
- arXiv 2026 ARXIV arXiv preprint
On the Value of Base Station Motion Knowledge for Goal-Oriented Remote Monitoring with Energy-Harvesting Sensors
This paper investigates goal-oriented remote monitoring of an unobservable Markov source using energy-harvesting sensors that communicate with a mobile receiver, such as a Low Earth Orbit (LEO) satellite or Unmanned Aeri…
- arXiv 2026 ARXIV arXiv preprint
Beyond Average-Channel-Based Rate Approximations: UAV Trajectory and Scheduling Optimization With Expected Rate Consideration
This paper investigates the joint optimization of trajectory, user scheduling, and time-slot duration in unmanned aerial vehicle (UAV)-assisted wireless communication systems under minimum expected spectral efficiency (S…
- arXiv 2026 ARXIV arXiv preprint
Nonlinear Predictive Control of the Continuum and Hybrid Dynamics of a Suspended Deformable Cable for Aerial Pick and Place
This paper presents a framework for aerial manipulation of an extensible cable that combines a high-fidelity model based on partial differential equations (PDEs) with a reduced-order representation suitable for real-time…
- arXiv 2026 ARXIV arXiv preprint
Robust Adaptive Sliding-Mode Control for Damaged Fixed-Wing UAVs
Many unmanned aerial vehicles (UAVs) can remain aerodynamically flyable after sustaining structural or control surface damage, yet insufficient robustness in conventional autopilots often leads to mission failure.
- arXiv 2026 ARXIV arXiv preprint
Geometric Inverse Flight Dynamics on SO(3) and Application to Tethered Fixed-Wing Aircraft
We present a robotics-oriented, coordinate-free formulation of inverse flight dynamics for fixed-wing aircraft on SO(3). Translational force balance is written in the world frame and rotational dynamics in the body frame…
- arXiv 2026 ARXIV arXiv preprint
Neurosim: A Fast Simulator for Neuromorphic Robot Perception
Neurosim is a fast, real-time, high-performance library for simulating sensors such as dynamic vision sensors, RGB cameras, depth sensors, and inertial sensors.
- arXiv 2026 ARXIV arXiv preprint
Kalman Filtering Based Flight Management System Modeling for AAM Aircraft
Advanced Air Mobility (AAM) operations are planned to utilize strategic flight planning services that predict temporal uncertainties to validate flight plans against hazards such as weather cells, restricted airspaces, a…
- arXiv 2026 ARXIV arXiv preprint
Path Planning Optimisation for SParse, AwaRe and Cooperative Networked Aerial Robot Teams (SpArC-NARTs): Optimisation Tool and Ground Sensing Coverage Use Cases
A networked aerial robot team (NART) comprises a group of agents (e.g., unmanned aerial vehicles (UAVs), ground control stations, etc.) interconnected by wireless links.
- arXiv 2026 ARXIV arXiv preprint
Muscle Coactivation in the Sky: Geometry and Pareto Optimality of Energy vs. Aerodynamic Promptness and Multirotors as Variable Stiffness Actuators
In robotics and biomechanics, trading metabolic cost for kinematic readiness is a well-established principle. This paper formalizes this concept for aerial multirotors through the introduction of aerodynamic promptness -…
- arXiv 2026 ARXIV arXiv preprint
SKYSURF: A Self-learning Framework for Persistent Surveillance using Cooperative Aerial Gliders
The success of surveillance applications involving small unmanned aerial vehicles (UAVs) depends on how long the limited on-board power would persist.
- arXiv 2026 ARXIV arXiv preprint
X-VORTEX: Spatio-Temporal Contrastive Learning for Wake Vortex Trajectory Forecasting
Wake vortices are strong, coherent air turbulences created by aircraft, and they pose a major safety and capacity challenge for air traffic management.
- arXiv 2026 ARXIV arXiv preprint
Multi-UAV Trajectory Optimization for Bearing-Only Localization in GPS Denied Environments
Accurate localization of maritime targets by unmanned aerial vehicles (UAVs) remains challenging in GPS-denied environments. UAVs equipped with gimballed electro-optical sensors are typically used to localize targets, ho…
- arXiv 2026 ARXIV arXiv preprint
UAV-Assisted 6G Communication Networks for Railways: Technologies, Applications, and Challenges
Unmanned Aerial Vehicles (UAVs) are crucial for advancing railway communication by offering reliable connectivity, adaptive coverage, and mobile edge services .
- arXiv 2026 ARXIV arXiv preprint
Transonic Buffet Modeling via Invariant Manifolds
In transonic flow over aircraft wings, shock-boundary-layer interactions can give rise to transonic buffet, which degrades maneuverability through unsteady aerodynamic loads.
- arXiv 2026 ARXIV arXiv preprint
Pitot-Aided Attitude and Air Velocity Estimation with Almost Global Asymptotic Stability Guarantees
This paper investigates the problem of attitude and air velocity estimation for fixed-wing unmanned aerial vehicles (UAVs) using IMU measurements and at least one Pitot tube measurement, with almost global asymptotic sta…
- arXiv 2026 ARXIV arXiv preprint
A melting mode of frozen sessile droplets with unmelted ice layer deposited at the bottom
Water-repellent properties of superhydrophobic surfaces make them promising for anti-icing and deicing applications. Through experimental visualization of frozen sessile droplets undergoing melting on superhydrophobic su…
- arXiv 2026 ARXIV arXiv preprint
UAV Trajectory Optimization via Improved Noisy Deep Q-Network
This paper proposes an Improved Noisy Deep Q-Network (Noisy DQN) to enhance the exploration and stability of Unmanned Aerial Vehicle (UAV) when applying deep reinforcement learning in simulated environments.
- arXiv 2026 ARXIV arXiv preprint
Impact of Physics-Informed Features on Neural Network Complexity for Li-ion Battery Voltage Prediction in Electric Vertical Takeoff and Landing Aircrafts
The electrification of vertical takeoff and landing aircraft demands high-fidelity battery management systems capable of predicting voltage response under aggressive power dynamics.
- arXiv 2026 ARXIV arXiv preprint
IMAGINE: Intelligent Multi-Agent Godot-based Indoor Networked Exploration
The exploration of unknown, Global Navigation Satellite System (GNSS) denied environments by an autonomous communication-aware and collaborative group of Unmanned Aerial Vehicles (UAVs) presents significant challenges in…
- arXiv 2026 ARXIV arXiv preprint
Computationally Tractable Robust Nonlinear Model Predictive Control using DC Programming
We propose a computationally tractable, tube-based robust nonlinear model predictive control (MPC) framework using difference-of-convex (DC) functions and sequential convex programming.