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Publisher : DIANE Publishing
ISBN 13 : 1428914471
Total Pages : 42 pages
Book Rating : 4.76/5 ( download)
Download or read book Motion Resistance of Wheeled Vehicles in Snow written by and published by DIANE Publishing. This book was released on with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher :
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4.27/5 ( download)
Download or read book Motion Resistance of Wheeled Vehicles in Snow written by and published by . This book was released on 1995 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Before vehicle mobility in snow can be reliably predicted, a complete understanding of motion resistance in snow is required. This report examines several aspects of wheeled vehicle motion resistance using results obtained with the CRREL instrumented vehicle. Resistances of leading and trailing tires are examined. Limited data are presented for undercarriage drag, and third and fourth wheel passes in the same rut are initially analyzed, as is how snow deforms around a wheel. For the CRREL instrumented vehicle, a trailing tire has a resistance coefficient of about 0.017 for snow depths less than about 22cm. For deeper snow, the disruption of the snowpack caused by a preceding wheel causes snow to fall into the rut, resulting in higher trailing tire coefficients. For larger vehicles, which in some cases have trailing tires carrying larger loads than preceding tires, the trailing tire coefficients are on the order of 0.048 and 0.025 for second and third trailing wheels respectively. Since there are no trailing tire data available for these larger vehicles, these values are based on nonlinear regression analysis, which includes a prediction of the leading tire resistance. The results and observations of this study are applied in a reanalysis of the towed resistance data obtained during the U.S. Army's Wheels vs. Tracks study. An improved algorithm is presented for predicting wheeled vehicle motion resistance caused by snow. (AN).
Author : George L. Blaisdell
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.44/5 ( download)
Download or read book Predicting Wheeled Vehicle Motion Resistance in Shallow Snow written by George L. Blaisdell and published by . This book was released on 1981 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: A vehicle traveling through snow is required to expend a greater amount of energy than is necessary when traveling on a rigid surface. Visually, this energy difference can be explained by the formation of a rut. Various attempts have been made in the past to equate the energy of compaction to vehicle motion resistance. However, many of the previous models use information gathered through the application of a vertical force (with a plate-sinkage device) to predict the horizontal motion resisting force. In an attempt to more accurately quantify the relationship between snow compaction and vehicle motion resistance, a vectorial analysis of compaction by a wheel is performed. A method for separating the compaction due to vehicle weight and forward thrust (horizontal propulsion) is suggested. Two methods of using this compaction force breakdown with field-generated data are proposed for the calculation of vehicle motion resistance in shallow snow.
Author : Paul W. Richmond
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.42/5 ( download)
Download or read book Wheels and Tracks in Snow written by Paul W. Richmond and published by . This book was released on 1990 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.8I/5 ( download)
Download or read book CRREL Report written by and published by . This book was released on 1990 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher : DIANE Publishing
ISBN 13 : 1428914269
Total Pages : 78 pages
Book Rating : 4.61/5 ( download)
Download or read book Cold Regions Mobility Models written by and published by DIANE Publishing. This book was released on with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : George L. Blaisdell
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.82/5 ( download)
Download or read book Wheels and Tracks in Snow written by George L. Blaisdell and published by . This book was released on 1990 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 638 pages
Book Rating : 4.43/5 ( download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists 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.
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ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.8D/5 ( download)
Download or read book Special Report written by and published by . This book was released on 1993 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J.Y. Wong
Publisher : Elsevier
ISBN 13 : 0443156158
Total Pages : 594 pages
Book Rating : 4.51/5 ( download)
Download or read book Terramechanics and Off-Road Vehicle Engineering written by J.Y. Wong and published by Elsevier. This book was released on 2024-04-23 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terramechanics and Off-Road Vehicle Engineering, 3rd Edition provides comprehensive and in-depth coverage of terrain behavior, mechanics of wheel- and track-terrain interaction, and various types of models for cross-country performance, ranging from empirical, through theoretical, to physics-based engineering models. The physics-based models for wheeled and tracked vehicle performance developed under the direction of Prof. J.Y. Wong have been gaining increasingly wider acceptance by industry and government agencies around the world. The mathematical models established for vehicle-terrain systems will enable the engineering practitioner to evaluate, on a rational basis, a wide range of options and to select an appropriate vehicle configuration for any given mission and environment. This long-anticipated revision presents the fields’ significant developments over the past decade, both through updates to existing chapters and the inclusion of new material related to modelling applications in addition to a notable, state-of-the-art excursus on extra-terrestrial rovers. Provides a comprehensive introduction to the mechanics of vehicle-terrain interaction Demonstrates through examples the application of computer-aided engineering methods to the parametric analysis of off-road vehicle performance Covers the most recent advancements in the off-road vehicle industry, encompassing evaluation, design, development, and/or procurement of high-mobility equipment for the recreational, agricultural, construction, mining, military, and aerospace sectors
