Results 71 to 80 of about 67,696 (213)

Hybrid Propulsion Technology Program, phase 1. Volume 1: Executive summary [PDF]

open access: yes
The study program was contracted to evaluate concepts of hybrid propulsion, select the most optimum, and prepare a conceptual design package. Further, this study required preparation of a technology definition package to identify hybrid propulsion ...

core   +1 more source

Displaced geostationary orbit design using hybrid sail propulsion [PDF]

open access: yes, 2011
Because of an increase in the number of geostationary spacecraft and the limits imposed by east–west spacing requirements, the geostationary orbit is becoming congested. To increase its capacity, this paper proposes to create new geostationary slots by
Becerra V. M.   +14 more
core   +1 more source

Modeling and Investigation of a Turboprop Hybrid Electric Propulsion System

open access: yesAerospace, 2018
Hybrid electric propulsion in the aviation field is becoming an effective alternative propulsion technology with potential advantages, including fuel savings, lower pollution, and reduced noise emission.
Maria Cristina Cameretti   +4 more
doaj   +1 more source

Advanced propulsion system concept for hybrid vehicles [PDF]

open access: yes
A series hybrid system, utilizing a free piston Stirling engine with a linear alternator, and a parallel hybrid system, incorporating a kinematic Stirling engine, are analyzed for various specified reference missions/vehicles ranging from a small two ...
Bhate, S., Chen, H., Dochat, G.
core   +1 more source

Phase 1 of the near term hybrid passenger vehicle development program. Appendix B: Trade-off studies, volume 1 [PDF]

open access: yes
Tradeoff study activities and the analysis process used are described with emphasis on (1) review of the alternatives; (2) vehicle architecture; and (3) evaluation of the propulsion system alternatives; interim results are presented for the basic hybrid ...
Piccolo, R., Traversi, M.
core   +1 more source

Design and dynamics modeling of a hybrid drive bionic robotic fish

open access: yesBiomimetic Intelligence and Robotics
While recent advancements in hybrid propulsion systems for bionic robotic fish—combining biomimetic mechanisms with classical vector thrusters—demonstrate enhanced locomotion capabilities and application potential, challenges remain in modeling the ...
Haoyu Huang   +4 more
doaj   +1 more source

Обгрунтування та вибір критеріїв оцінки процесу електродинамічного гальмування під час руху гібридного транспортного засобу на затяжних спусках [PDF]

open access: yes, 2013
В результаті проведених досліджень отримано рівняння руху транспортного засобу під час здійснення електричного гальмування на затяжному спуску, досліджено вплив конструктивних показників транспортного засобу з гібридною силовою установкою на процес ...
Дембіцький, В. М.   +1 more
core  

Hybrid propulsion technology program: Phase 1, volume 1 [PDF]

open access: yes
A number of booster propulsion system concepts are being considered for the next generation of manned and unmanned space launch vehicles. The one propulsion system concept that has potential for reducing costs with increased safety, reliability, and ...
Schuler, A. L., Wiley, D. R.
core   +2 more sources

Design of a Ship Speed Control System Using Hybrid Propulsion Based on Fuzzy Logic

open access: yesEmitor: Jurnal Teknik Elektro
The maritime transportation sector, especially in archipelagic countries like Indonesia, faces significant challenges in optimising ship speed and fuel efficiency, particularly when using hybrid propulsion systems.
Fajar Surya Muhammad Aldoko   +4 more
doaj   +1 more source

Steady-state and dynamic evaluation of the electric propulsion system test bed vehicle on a road load simulator [PDF]

open access: yes
The propulsion system of the Lewis Research Center's electric propulsion system test bed vehicle was tested on the road load simulator under the DOE Electric and Hybrid Vehicle Program.
Dustin, M. O.
core   +1 more source

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