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Showing 1 to 20 of 32 for “"eVTOL"”.
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Aerodynamic and Acoustic Modeling for eVTOL Rotor Noise Prediction
… scale electric vertical takeoff and landing (eVTOL) rotor in both hover and edgewise flight conditions. The approach couples sectional two-dimensional Reynolds-Averaged Navier-Stokes (2D-RANS) airfoil simulations with rotor loading predictions from the Comprehensive Hierarchical Aeromechanics …
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Envelope Analysis of Speed-Controlled eVTOL Urban Air Mobility Vehicles
<p>There are many vehicles being developed which rely on electrically driven propellers/rotors for both control and propulsion. Based on these vehicles, it is hypothesized that there exists a size limit for speed-controlled propellers/rotors in terms of propeller/rotor diameter. To investigate …
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Key-Based Authentication Scheme for eVTOL Drones Using Chebyshev Chaotic Maps
… of electric Vertical Take-Off and Landing (eVTOL) drones signifies a substantial advancement in urban air mobility, ready to transform transportation models in densely populated regions. These advanced drones, distinguished by their capacity to function in limited spaces and their minimized …
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Multidisciplinary design optimization of an eVTOL aircraft using analytical target cascading
… a fully electric vertical takeoff and landing (eVTOL) vehicle. Analytical models for eVTOL subsystems are discussed, and various strategies for efficient application of ATC coordination between individual optimization processes for coherent integration across the systems are explored. A …
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Study of Occupant Model Capability to Quantify Injury Risk for eVTOL Vehicles
… electric vertical take-off and landing (eVTOL) vehicles which can be utilized for on-demand transportation, cargo transport, and emergency services. These new eVTOL vehicles are designed to be small, lightweight, and eventually autonomously operable without user intervention. Safety is a …
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Rookies to Aces: Investigating the Intuitiveness of Pilot Interaction for Operating eVTOL Aircraft
<p>Electric Vertical Take-Off and Landing (eVTOL) aircraft introduce unique movement dimensions beyond traditional fixed-wing and rotor-wing aircraft, requiring novel control interfaces for pilot operation. This study examines the compatibility of gesture-based control movements across participants …
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ROBUST CONTROL OF AN EVTOL THROUGH TRANSITION WITH A GAIN SCHEDULING LQR CONTROLLER
… of electric vertical takeoff and landing (eVTOL) aircraft has become a greater portion of the market. This increase drives a need for research into control of the eVTOLs to ensure safe flight through the transition from hover to forward flight. This paper proposes a control strategy using …
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Design, flight testing and PID control gain tuning for lift-plus-cruise EVTOL octocopter
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-12-01
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Advances in Aero-Propulsive Modeling for Fixed-Wing and eVTOL Aircraft Using Experimental Data
… and electric vertical takeoff and landing (eVTOL) aircraft have recently emerged as vehicles able to perform new missions and stimulate future air transportation methods. This dissertation presents several system identification research advancements for these modern aircraft configurations …
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High-Fidelity Modeling of eVTOL Rotor Unsteady Aerodynamic and Aeroacoustic Response to Time-Harmonic Gust
… by electric vertical take-off and landing (eVTOL) aircraft operating in complex urban environments. Among the various noise sources, the aerodynamic and acoustic response of rotors to unsteady inflow represents a major uncertainty in community-noise assessment and certification. This thesis …
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Aerodynamic survey of lift-plus-cruise evtol geometries and respective drag reduction elements using reynolds average navier-stokes
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Investigation of the Aerodynamic and Acoustic Performance of a Scaled eVTOL Propeller in Axial and Non-Axial Flight
… utilizing electric Vertical Takeoff and Landing (eVTOL) propulsion systems for UAM applications, significant gaps remain in the understanding of their aerodynamic and acoustic performance, particularly when interacting with disturbances such as turbulence generated by buildings. To address safety, …
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Compact Electromechanical Actuators for Urban Air Mobility: Development of a Framework for Design, Digital Twin and PHM Integration in eVTOL Aircrafts
L'abstract è presente nell'allegato / the abstract is in the attachment
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Aeroacoustics Applications to Jets and Rotors
… characterization, particularly in the context of eVTOL applications. Although the study is limited to a single rotor configuration, it serves as a foundational step toward understanding the aeroacoustic behavior of multirotor systems in Urban Air Mobility (UAM). This research, conducted as part of …
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Design of a Fan-Based Test Stand for Evaluating Multicopter Handling in Turbulent Flow
<p>With the innovation of eVTOL rotorcraft the need to analyze how turbulence-induced disturbances from orthogonal flow affect various rotorcraft configurations outside of simulations have grown significantly. To investigate the behavior of this type of flow and how it interacts with various …
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Measurement and Prediction of Rotor Noise Sources for sUAS in Outdoor and Laboratory Environments
… of aerodynamic performance and noise of eVTOL rotors operating in multiple facilities, and analysis of the noise associated with an outrunner brushless DC motor. Empirical and low-order models are used to predict aerodynamic performance, tonal noise, and broadband noise for isolated eVTOL …
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Low-Tip-Speed High-Torque Proprotor Noise Approximation for Design Cycle Analysis
… concluding that a custom designed proprotor for eVTOL applications is quieter than conventional rotor.</p>
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Double-Side Cooled 3.3 kV, 100 A SiC MOSFET Phase-Leg Modules for Traction Applications
… such as electric trucks, railways, and eVTOL aircraft.
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Numerical Modeling of Synthetic Vortical Disturbance Interactions Using OpenFOAM
… (AAM) Electic Vertical Take-off and Landing (eVTOL) concepts is rapidly increasing due to their capability of vertical take-off and landing at vertiports located on rooftops of tall urban buildings, which does not require using the ground space in a condensed urban environment. Such flight …
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