Title:
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Examining the conceptual design process for future hybrid-electric rotorcraft
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Authors:
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Reed A. Danis, Author ;
Michael W. Green, Author ;
Jeffrey L. Freeman, Author ;
David W. Hall, Author
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Material Type:
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report
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Publisher:
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[S.l.] : National Aeronautics and Space Administration, 2018
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Series:
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NASA CR
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Size:
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1 online resource (viii, 71 p.) / col. ill.
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Bibliography note:
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Includes bibliographical references
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Languages:
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English
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Subjects:
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Hybrid propulsion
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Propulsion systems
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Space vehicles--Design and construction
;
Space vehicles--Electric propulsion systems
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Description:
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As part of a NASA Small Business Innovative Research (SBIR) Phase II contract, Empirical Systems Aerospace (ESAero) investigated the implementation of several hybrid-electric propulsion architectures onto three rotorcraft configurations. Unique hybrid-electric variants of these configurations were compared against their conventionally-powered counterparts using typical metrics such as payload, range, and energy efficiency. The feasibility and performance of these vehicles was also investigated in the +15 and +30-year timeframes based on third-party estimations for future component performance. Using the lessons learned during this trade study, ESAero then conducted a conceptual design effort for a hybrid-electric tiltrotor demonstrator based on the XV-15. A detailed integration of the hybrid-electric propulsion system into the vehicle airframe was also performed. The hybrid-electric XV-15 concept vehicle was estimated to achieve a 10% reduction in cruise fuel consumption compared to the original NASA XV-15 at the cost of increasing the vehicle empty weight by almost 25%. The success of this design effort suggests that the design of a manned, hybrid-electric tiltrotor is technically feasible at current technology levels.
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Access:
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https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20180003214.pdf
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Permalink:
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https://isulibrary.isunet.edu/index.php?lvl=notice_display&id=10536
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