The Society of Automotive Engineers, Inc. (SAE) Truck Tire Noise Subcommittee conducted a series of truck tire noise tests at the Automotive Proving Grounds, Inc. in Pecos, Texas, November 5-7, 1973. At the request of DOT, NBS participated in these tests and made simultaneous measurements with those made by the SAE committee. This report presents a summary of the results obtained during these tests.
This report presents data showing the effect that pavement surface has on the generation of truck tire noise. Three different tread designs-rib, crossbar and pocket-were tested at speeds of 40, 50 and 60 mph (64.4, 80.5 and 96.5 km/hr) while coasting on eight different pavement surfaces at the Texas Transportation 19. Security Classif. (of this report) Unclassified 20. Security Classif.
Automobiles, the primary mode of transportation in the United States, contribute significantly to the noise environment due to th.e large number in operation.In this report, one aspect of automobile noise is discussed; namely, the contribution to overall vehicle noise resulting from the interaction of the tires with the road surface. Abstract AutomolDiles , the primary mode of transportation in the United States, contribute significantly to the noise environment due to the large number in operation.In this report, one aspect of automobile noise is discussed; namely, the contribution to overall vehicle noise resulting from the interaction of the tires with the road surface. The results of this pilot study, which investigated the influence of selected parameters on automobile tire noise levels, in conjunction with a review of the open literature, serve as the basis for comparison of parametric trends between truck (for which an extensive noise data base exists) and automobile tires. As was the case with trucks, vehicle speed, road surface characteristics and tread design are major factors affecting automobile tire noise. The effect of pavement surface is more significant for automobile tires than for trucks since the texture within the tire-road interaction zone is on the same scale as the tread element spacing typical of passenger car tires. Load and wear, significant factors for truck tires, do not affect automobile tires as much due to the fact that the majority of automobile tires utilize rib tread designs. On the basis of the limited data available in the literature, factors such as inflation pressure, number of plies, tire dimensions, tire cord material, etc., do not appear to be significant factors affecting automobile tire noise. 11 1.
This is a special report within a series of reports emanating from an interagency agreement with NBS to perform a wide variety of truck and passenger car tire noise research. AbstractThis report presents the A-weighted sound level and one-third octave band spectral data resulting from a study conducted to characterize the noise generated by military truck tires. The study was conducted by the National Bureau of Standards in cooperation with the U.S. Department of Transportation under the sponsorship of the U.S. Army Tank-Automotive Command. The data base established will allow for comparison of the tire noise generated by military and commercial truck tires.The study investigated the influence of load and speed on the noise generated by tires with four different tread designs: the standard Army tire, a retread of Army design and commercial tires with rib and cross-bar type tread patterns. Army and commercial trucks were utilized as test vehicles.In addition, the report includes a discussion of the measurement and analysis techniques utilized for the establishment of this data base.17.
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