Results 71 to 80 of about 362,448 (239)

Adaptive Airborne Separation to Enable UAM Autonomy in Mixed Airspace [PDF]

open access: yes
The excitement and promise generated by Urban Air Mobility (UAM) concepts have inspired both new entrants and large aerospace companies throughout the world to invest hundreds of millions in research and development of air vehicles, both piloted and ...
Cotton, William B.
core   +1 more source

Performance of Non‐Precious Metal Electrocatalysts in Proton‐Exchange Membrane Fuel Cells: A Review

open access: yesChemElectroChem, Volume 11, Issue 17, September 2, 2024.
This review explores high‐performing non‐precious metal catalysts for proton exchange membrane fuel cells, aiming to understand the factors influencing their performance and degradation. It involves their synthesis methods, potential active sites, characterization, and membrane electrode assembly fabrication.
Srivarshini Rukmani Krishnan   +2 more
wiley   +1 more source

Evaluation of the Multiaxial Fatigue Life of Electro-Mechanical Actuator for Aircraft Blade Pitch Control Based on Certification Standards

open access: yesAerospace
To achieve the commercialization of electric vertical takeoff and landing (eVTOL) aircrafts, which have recently garnered attention as the next-generation means of transportation, objective certification based on rigorous procedures is essential.
Young-Cheol Kim   +2 more
doaj   +1 more source

eVTOL 항공기 사이징을 위한 중량 분율 추정 [PDF]

open access: yes, 2023
학위논문(석사) -- 서울대학교대학원 : 공과대학 항공우주공학과, 2023. 8. 신상준.In recent years, eVTOL aircraft have emerged as environmentally friendly new transportation vehicles, garnering a significant attention in their design.
심성우
core  

Study on Certification-Driven Fault Detection Threshold Optimization for eVTOL Dual-Motor-Driven Rotor

open access: yesAerospace
Advances in motor technology and the application of distributed electric propulsion systems have greatly promoted the development of electric vertical take-off and landing aircraft.
Liqun Ma, Chenchen Ma, Jianzhong Yang
doaj   +1 more source

NASA Electric Vertical Takeoff and Landing (eVTOL) Aircraft Technology for Public Services – A White Paper:NASA Transformative Vertical Flight Working Group 4 (TVF4) [PDF]

open access: yes, 2021
While electric power has been used for decades, recent developments in mobile electric/hybrid propulsion coupled with advanced materials and autonomous systems may create the possibility to transition into the next age of air mobility propelled by ...
Bennet, Edward   +9 more
core  

Evaluation of Impact Energy Attenuators and Composite Material Designs of a UAM VTOL Concept Vehicle [PDF]

open access: yes
The development of Vertical Take-off and Landing (VTOL) vehicles for the Urban Air Mobility (UAM) markets presents a need for light weight vehicle structures with effective occupant protection capabilities.
Littell, Justin, Putnam, Jacob
core   +1 more source

The Evaluation of Composite Energy Absorbers for Use in UAM EVTOL Vehicle Impact Attenuation [PDF]

open access: yes
The demand for new personal air-taxi services is leading to the development of lightweight Vertical Take-off and Landing (eVTOL) vehicles with electric propulsion for the Urban Air Mobility (UAM) industry.
Hardy, Robin   +2 more
core   +1 more source

Accessibility Design and Operational Considerations in the Development of Urban Aerial Mobility Vehicles and Networks [PDF]

open access: yes
Urban aerial mobility vehicles and networks have recently gained considerable interest in the aviation community. These small, short-range vehicles with all-electric or hybrid-electric propulsion systems, tailored to metropolitan aerial transportation ...
Young, Larry A.
core   +1 more source

Overview of Electric Propulsion Motor Research for EVTOL

open access: yesEngineering Proceedings
Electric aviation is the future development direction of aviation industry technology. Electric vertical take-off and landing aircraft(eVTOL) is an important carrier of electric aviation, whose technology research and development, processing and ...
Xiaopeng Zhao   +4 more
doaj   +1 more source

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