Search Results

A method of non-destructively detecting internal anomalies or void areas in tires can be a valuable tool for tire structural analysis. Such a system has become commercially available. This system uses holographic interferometry in conjunction with vacuum stressing to non-destructively inspect tires for internal voids or anomalies. A holographic non-destructive testing (HNDT) system has been purchased by General Motors Proving Ground and has been utilized by the Tire & Wheel Development Laboratory for structural analysis of tires prior to, during, and after testing. The HNDT equipment is described and the process and utility of passenger car tire analysis explained.

The purpose of this paper is to provide an overview of the process of selection, development and approval of General Motors original equipment TPC passenger car tires. We have attempted to minimize detail in each specific area, but intend to provide a general comprehension of the thought processes involved and the procedures used to select the proper tire size and type for a vehicle. We will then describe the tire performance criteria involved in the overall development and approval process and will subsequently consider tire noise requirements in somewhat greater detail. The paper will conclude by describing the General Motors Tire Performance Criteria (TPC) System, which is a documentation of the General Motors Tire Performance requirements and test procedures.