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Author: John J. Coy
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
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Book Description
The NASA Lewis Research Center and the U.S. Army Aviation Systems Command share an interest in advancing the technology for helicopter propulsion systems. In particular, this paper presents highlights from that portion of the program in drive train technology and the related mechanical components. The major goals of the program are to increase life, reliability, and maintainability; reduce the weight, noise, and vibration; and maintain the relatively high mechanical efficiency of the gear train. The current activity emphasizes noise reduction technology and analytical code development followed by experimental verification. Selected significant advances in technology for transmissions are reviewed, including advanced configurations and new analytical tools. Finally, the plan for transmission research in the future is presented.
Author: John J. Coy
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
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Book Description
The NASA Lewis Research Center and the U.S. Army Aviation Systems Command share an interest in advancing the technology for helicopter propulsion systems. In particular, this paper presents highlights from that portion of the program in drive train technology and the related mechanical components. The major goals of the program are to increase life, reliability, and maintainability; reduce the weight, noise, and vibration; and maintain the relatively high mechanical efficiency of the gear train. The current activity emphasizes noise reduction technology and analytical code development followed by experimental verification. Selected significant advances in technology for transmissions are reviewed, including advanced configurations and new analytical tools. Finally, the plan for transmission research in the future is presented.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
This paper is a review of some of the research work of the NASA Lewis Research Center Mechanical Components Branch. It includes a brief review of the NASA Lewis Research Center and the Mechanical Components Branch. The research topics discussed are crack propagation of gear teeth, gear noise of spiral bevel and other gears, design optimization methods, methods we have investigated for transmission diagnostics, the analytical and experimental study of gear thermal conditions, the analytical and experimental study of split torque systems, the evaluation of several new advanced gear steels and transmission lubricants and the evaluation of various aircraft transmissions. The area of research needs for gearing and transmissions is also discussed.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 912
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Book Description
Author: Gianluigi Migliavacca
Publisher: Springer Science & Business Media
ISBN: 1447145496
Category : Technology & Engineering
Languages : en
Pages : 403
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Book Description
The re-engineering of power transmission systems is crucial to meeting the objectives of such regulators as the European Union. In addition to its market, organisational and regulatory aspects, this re-engineering will also involve technical issues dealing with the progressive integration of innovative transmission technologies in the daily operation of transmission system operators. In this context, Advanced Technologies for Future Transmission Grids provides an overview of the most promising technologies, likely to be of help to planners of transmission grids in responding to the challenges of the future: security of supply; integration of renewable generation; and creation of integrated energy markets (using the European case as an example). These issues have increased importance because of administrative complication and the fragmentation of public opinion expressed on the build up of new infrastructure. For each technology discussed, the focus is on the technical-economic perspective rather than on purely technological points of view. A transmission-system-operator-targeted Technology Roadmap is presented for the integration of promising innovative power transmission technologies within power systems of the mid-long term. Although the primary focus of this text is in the sphere of the European energy market, the lessons learned can be generalized to the energy markets of other regions.
Author: Oak Ridge National Laboratory
Publisher:
ISBN:
Category : Electric power distribution
Languages : en
Pages : 2864
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Book Description
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 2698
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Book Description
Author: Oak Ridge National Laboratory
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1440
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Book Description
Author: American Society of Civil Engineers
Publisher:
ISBN: 9780784415559
Category : Electric power transmission
Languages : en
Pages : 80
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Book Description
This book provides valuable aesthetic design insights and concepts to be considered during the design stage of electric transmission structures projects.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 828
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1430
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Book Description
