Download or read book Performance of Soils Under Tire Loads written by Newell R. Murphy and published by . This book was released on 1967 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of Soils Under Tire Loads Report 6 Effects of Test Techniques on Wheel Performance written by Newell R Murphy (Jr) and published by . This book was released on 1967 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of the effects of various testing techniques on the performance of pneumatic tires operating in an air-dried desert sand and a nearly saturated fat clay. Tests employing both controlled-slip and controlled-pull techniques were conducted with single-wheel dynamometer carriages. The results are presented in the form of graphs with emphasis placed upon the pull-slip and torque-slip relations. For the conditions tested, wheel performance was found to be independent of testing techniques, with one exception; consistent differences were noted between the results of programmed-increasing- and programmed-decreasing-slip tests. However, this disagreement occurred only for a narrow range of slip (approximately -10 to +10%). Careful and complete analysis of a dynamic test system must be made to determine the forces that actually represent the wheel performance. A brief analysis of the horizontal forces acting on the test dynamometers is given to emphasize this point, particularly with regard to differences between pull-slip and drawbar pull-slip relations. It is shown that because of the inability always to attain a stable condition in controlled-pull tests, controlled-slip tests are better for defining pull-slip relations. (Author).

Download or read book Performance of Soils Under Tire Loads written by Thomas R. Patin and published by . This book was released on 1972 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of Soils Under Tire Loads written by John L. McRae and published by . This book was released on 1965 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of Soils Under Tire Loads written by Robert D. Wismer and published by . This book was released on 1966 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1971 with total page 1692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of Soils Under Tire Loads written by Charles J. Powell and published by . This book was released on 1965 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of Soils Under Tire Loads written by Gerald W. Turnage and published by . This book was released on 1966 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1976 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1977-03 with total page 1198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Automobile Safety Bibliography of Literature Through January 1970 written by University of Michigan. Highway Safety Research Institute and published by . This book was released on 1970 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of Dual wheel Configurations in Coarse grained Soil written by Klaus-Jergen Melzer and published by . This book was released on 1971 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three pneumatic tires were used in a laboratory study to compare the performance of dual wheels at zero spacing with the performance of single wheels and to determine the influence of tire spacing on dual-wheel performance. One-pass tests were conducted on air-dry, medium dense to very dense sand. The data were analyzed for powered wheels in terms of pull, torque, and sinkage coefficients and of efficiency, all at 20 percent slip, and for towed wheels in terms of towed force coefficients. The existing WES performance prediction system was used in both cases. Results showed that a powered dual wheel at zero spacing, considered as two wheels sharing equal load and exhibiting equal performance, outperformed a single wheel with the same characteristics as each wheel of the dual-wheel configuration. The performance of powered dual wheels decreased with increasing wheel spacing until the two wheels performed like single wheels. This critical spacing was reached when it became two to three and one-half times the width of one of the wheels. A dual wheel at zero spacing, considered as one wheel, performed practically the same as a single wheel with the same characteristics of the dual-wheel configuration; however, the dual wheel with zero spacing performed more efficiently than the single wheel over a certain range of load, deflection, and soil strength combinations. (Author).

Download or read book Government Reports Index written by and published by . This book was released on 1973 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Preliminary Study of Seafloor Trafficability and Its Prediction written by K. W. Wiendieck and published by . This book was released on 1970 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1961 with total page 1274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanics of Wheels on Soft Soils written by E. M. Leflaive and published by . This book was released on 1967 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: