Verification of Brake Rotor Modal Frequencies
Provide description of standard test methods, analysis methods, and reporting methods for measuring the resonant modes of automotive disc brake rotors and drums for purpose of design and production verification of these components.
Rationale: Braking systems industry uses modal testing of brake rotors for design validation, production validation, and quality control purposes. Several vendors provide equipment to facilitate this measurement. Currently, there exists no standard procedure that brings uniformity to these measurements. This procedure addresses this need by providing the guidelines necessary for making these measurements comparable.
Also known as: SAE J 2933
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