Research for a Uniform Quality Grading System for Tires. III. Breaking Energy

1970 ◽  
Vol 43 (2) ◽  
pp. 356-369
Author(s):  
B. G. Simon ◽  
J. Mandel ◽  
F. C. Brenner
Keyword(s):  
Test Procedure ◽  
Original Data ◽  
Grading System ◽  
Passenger Car ◽  
Quality Grading ◽  
Breaking Energy

Abstract A test procedure designed to classify tires according to their average breaking energy has been applied to a sample of passenger car tires. Data are reported on 127 different tires of all grades and types over a range of sizes. A scaling system is devised and applied to the data. It is found that the system leads to conclusions similar to those derived from the original data.

Research for a Uniform Quality Grading System for Tires V. Effect of Environment on Tread Wear Rate

1971 ◽  
Vol 44 (4) ◽  
pp. 952-959 ◽  
Author(s):  
F. C. Brenner ◽  
A. Kondo ◽  
G. B. Cohen
Keyword(s):  
Wear Rate ◽  
Grading System ◽  
Passenger Car ◽  
Contact Patch ◽  
Quality Grading ◽  
Wet Surface

Abstract In tests with bias ply, belted bias, and radial commercial passenger car tires it was found that the rate of wear does not change as the tires are worn. It was also shown in a test which there were dry and wet periods that the same tires wore at a faster rate in the wet than in the dry. This observation was reinforced when a comparison of two tests run with duplicate sets of tires in January and June on the same course gave greatly different results; the greater rate of wear occurring in January when the course was continuously wet. Finally an explanation for the observation that tires wear faster on wet pavements has been proposed. The tire is more deformed passing through the contact patch on a wet surface than on a dry. In addition, the water, acting as a lubricant, reduces resistance to motion between surfaces of the cut rubber or the surface of the cutting asperity and the rubber.

Research for a Uniform Quality Grading System for Tires. IV. Tread Wear

1971 ◽  
Vol 44 (1) ◽  
pp. 106-121 ◽  
Author(s):  
F. C. Brenner ◽  
A. Kondo
Keyword(s):  
San Antonio ◽  
Test Procedure ◽  
The Other ◽  
Grading System ◽  
Quality Grading ◽  
Highly Correlated

Abstract This research had as its objective the development of a test procedure for rating tires for tread wear. The results of preliminary experiments on roads of different composition and severity are discussed. The authors conclude that the course on which tires are to be rated should include several different pavements and a variety of maneuvers of unequal severity. Two courses, one near Bryan, Texas, and the other near San Antonio, Texas were designed on this principle. Eighteen brands of tires including bias, radial, and G78 belted bias tires were run on each course. The tires ranked in order of decreasing projected mileage on each course were highly correlated, although the mileages were not equal.

Research for a Uniform Quality Grading System for Tires. II. Wheel Speed Capability Test

1969 ◽  
Vol 42 (5) ◽  
pp. 1450-1461
Author(s):  
F. C. Brenner ◽  
J. Mandel ◽  
B. G. Simson
Keyword(s):  
Laboratory Test ◽  
Size Range ◽  
Wheel Speed ◽  
Test Method ◽  
Grading System ◽  
Passenger Car ◽  
Quality Grading

Abstract The wheel speed capability of a tire is defined by a test method which determines the speed at which the tire fails on a laboratory test wheel. Data is reported on over 100 different passenger car tires of all grades and types over a range of sizes. A scaling system is devised for this property. It is found that the system produces consistent results for tires of given manufacturer's nominal grade across the size range tested and for samples produced several months apart.

Navel Orange Blemish Identification for Quality Grading System

2009 ◽  
pp. 675-682 ◽  
Author(s):  
MingHui Liu ◽  
Gadi Ben-Tal ◽  
Napoleon H. Reyes ◽  
Andre L. C. Barczak
Keyword(s):  
Grading System ◽  
Navel Orange ◽  
Quality Grading

Research for a Uniform Quality Grading System for Tires

1969 ◽  
Vol 42 (5) ◽  
pp. 1446-1449 ◽  
Author(s):  
F. C. Brenner
Keyword(s):  
Motor Vehicle ◽  
Impact Resistance ◽  
Wheel Speed ◽  
Vehicle Safety ◽  
Grading System ◽  
Quality Grading ◽  
Motor Vehicle Safety

Abstract The National Traffic and Motor Vehicle Safety Act of 1966 requires the establishment of a uniform quality grading system. This paper discusses the needs for the system and the complexity of the problem. The system proposed here will depend on five properties; tread wear, traction, impact resistance, endurance, and wheel speed capability.

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