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Thursday, July 23, 2020 | History

3 edition of Demonstration of the coast-down technique for determining train resistances found in the catalog.

Demonstration of the coast-down technique for determining train resistances

Demonstration of the coast-down technique for determining train resistances

final report

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  • 24 Currently reading

Published by National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology in Pasadena, Calif .
Written in English

    Subjects:
  • Railroads -- Aerodynamics.,
  • Railroads -- Energy consumption.,
  • Aerodynamic drag.,
  • Cost estimates.,
  • Energy consumption.,
  • Rolling contact loads.

  • Edition Notes

    Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1984. 1 microfiche.

    StatementBain Dayman ; prepared for Technology Utilization Office, National Aeronautics and Space Administration by Jet Propulsion Laboratory, California Institute of Technology, with cooperation from Atchison, Topeka and Santa Fe Railway Company.
    SeriesJPL publication -- 83-85., NASA-CR -- 173468., NASA contractor report -- NASA CR-173468.
    ContributionsAtchison, Topeka, and Santa Fe Railway Company., United States. National Aeronautics and Space Administration. Technology Utilization Office., Jet Propulsion Laboratory (U.S.)
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL16154739M

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Demonstration of the coast-down technique for determining train resistances Download PDF EPUB FB2

Get this from a library. Demonstration of the coast-down technique for determining train resistances: final report. [Bain Dayman; Atchison, Topeka, and Santa Fe Railway Company.; United States.

National Aeronautics and Space Administration. Technology Utilization Office.; Jet Propulsion Laboratory (U.S.)]. The Atchison, Topeka and Santa Fe Railway Company to Union Trust Company of New York: general mortgage, being a book of words from many pens, Demonstration of the coast-down technique for determining train resistances.

Hammitt A, “Aerodynamic Forces on Freight Trains, Volume Dayman D, “Demonstration of the Coast-Down Technique for Determining Train Resistances”, Final Report, Jet Propulsion Laboratory, Pasadena, California, Publication No.

October Google ScholarCited by: 9. A demonstration of a simple coast-down technique (based on computer-reduction of distance history) was accomplished using specially configured trains on. Application of CFD to Rail Car and Locomotive Aerodynamics. Demonstration of the coast-down technique for determining train resistances.

A demonstration of a simple coast-down. In railroad engineering, curve resistance is a part of train resistance, namely the additional rolling resistance a train must overcome when travelling on a curved section of track.

Curve resistance is typically measured in per mille, with the correct physical unit being Newton per kilo-Newton or N/kN. Older texts still use the wrong unit of kilogram-force per tonne or kgf/t, which mixes an.

Analysis of coastdown data is a useful tool for the extraction of rolling resistance and aerodynamic drag coefficients of a road vehicle. Cenek and Shaw [1], from Central Laboratories, Works Consultancy Service, New Zealand, published velocity-time profiles incorporating continuous on-board anemometry and road slope by: 6.

THE INTERPRETATION OF TRAIN ROLLING RESISTANCE FROM FUNDAMENTAL MECHANICS. Past efforts in railway improvement have focused on increased train stability and ride quality for safe and smooth operations at higher speed. The question of energy consumption has rarely been : S A Bernsteen, R A Uher, J P Romualdi.

INTERPRETATION OF TRAIN ROLLING RESISTANCE FROM FUNDAMENTAL MECHANICS. First-order expressions for the rolling resistance of freight trains on level tragent track were derived from the basic principles of physics and engineering.

The average power dissipated by the suspension system was obtained from a linear model of the track train system.

Prediction of maximum amplitude response and critical speed. Demonstration on use of frequency analyzer. Quiz, Measurements, TM Lab 8 due.

11/ NO LAB this week Thanksgiving Nov. 26th. 12/ Turboelectric Drive Train Dynamic response of a first order system and measurement of coast down response. Identification of system time. This banner text can have markup. web; books; video; audio; software; images; Toggle navigation.

Full text of "The book of the automobile; a practical volume devoted to the history, construction, use and care of motor cars and to the subject of motoring in America" See other formats. If the book is under copyright in your country, do not download or redistribute this file.

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Chapters 11 concludes this book and is offered as an example of real world vehicle testing to show how the results of some simple coast down trials can be used to glean some significant insights into not only vehicle propulsion power needs, but how this need is modified when towing a trailer.

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