Propulsion System/flight Control Integration & Optimization
Author: Frank W. Burcham
Publisher:
Published: 1990
Total Pages: 22
ISBN-13:
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Author: Frank W. Burcham
Publisher:
Published: 1990
Total Pages: 22
ISBN-13:
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Publisher:
Published: 1990
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKAuthor: Frank W. Burcham
Publisher:
Published: 1990
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: Frank W. Burcham
Publisher:
Published: 1990
Total Pages: 32
ISBN-13:
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Published: 1994
Total Pages: 492
ISBN-13:
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Published: 1997
Total Pages: 30
ISBN-13:
DOWNLOAD EBOOKA state-of-the-art computational facility for aircraft flight control design, evaluation, and integration called CONDUIT (Control Designer's Unified Interface) has been developed. This paper describes the CONDUIT tool and case study applications to complex rotary- and fixed- wing fly-by-wire flight control problems. Control system analysis and design optimization methods are presented, including definition of design specifications and system models within CONDUIT, and the multi-objective function optimization (CONSOL-OPTCAD) used to tune the selected design parameters. Design examples are based on flight test programs for which extensive data are available for validation. CONDUIT is used to analyze baseline control laws against pertinent military handling qualities and control system specifications. In both case studies, CONDUIT successfully exploits trade-offs between forward loop and feedback dynamics to significantly improve the expected handling qualities and minimize the required actuator authority. The CONDUIT system provides a new environment for integrated control system analysis and design, and has potential for significantly reducing the time and cost of control system flight test optimization.
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
Published: 2016-08-09
Total Pages: 123
ISBN-13: 0309440998
DOWNLOAD EBOOKThe primary human activities that release carbon dioxide (CO2) into the atmosphere are the combustion of fossil fuels (coal, natural gas, and oil) to generate electricity, the provision of energy for transportation, and as a consequence of some industrial processes. Although aviation CO2 emissions only make up approximately 2.0 to 2.5 percent of total global annual CO2 emissions, research to reduce CO2 emissions is urgent because (1) such reductions may be legislated even as commercial air travel grows, (2) because it takes new technology a long time to propagate into and through the aviation fleet, and (3) because of the ongoing impact of global CO2 emissions. Commercial Aircraft Propulsion and Energy Systems Research develops a national research agenda for reducing CO2 emissions from commercial aviation. This report focuses on propulsion and energy technologies for reducing carbon emissions from large, commercial aircraftâ€" single-aisle and twin-aisle aircraft that carry 100 or more passengersâ€"because such aircraft account for more than 90 percent of global emissions from commercial aircraft. Moreover, while smaller aircraft also emit CO2, they make only a minor contribution to global emissions, and many technologies that reduce CO2 emissions for large aircraft also apply to smaller aircraft. As commercial aviation continues to grow in terms of revenue-passenger miles and cargo ton miles, CO2 emissions are expected to increase. To reduce the contribution of aviation to climate change, it is essential to improve the effectiveness of ongoing efforts to reduce emissions and initiate research into new approaches.
Author:
Publisher:
Published: 1995
Total Pages: 380
ISBN-13:
DOWNLOAD EBOOKLists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: James F. Stewart
Publisher:
Published: 1992
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKAuthor: James F. Stewart
Publisher:
Published: 1992
Total Pages: 28
ISBN-13:
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