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SAE J3002

Disc and Drum Brake Dynamometer Low-Frequency Noise Test Procedure

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Organization: SAE
Publication Date: 1 January 2021
Status: active
Page Count: 13
scope:

This test procedure outlines the necessary test equipment (test fixture, dynamometer, data acquisition system, etc.) and test sequence required to test for low-frequency brake noise (200 Hz to 1.25 kHz) on a brake noise dynamometer. It is intended to complement SAE J2521, which focuses on high-frequency brake squeal. This RP applies to passenger cars and light trucks with a gross vehicle weight rating below 4536 kg. Before using this RP for heavier vehicles, consult and agree with the test requestor and the testing facility.

Purpose

This recommended practice is intended to establish a common universally recognized method for performing a series of screening test sequences that identify the propensity of brake assembly to generate low frequency noise under a variety of test conditions

Document History

SAE J3002
January 1, 2021
Disc and Drum Brake Dynamometer Low-Frequency Noise Test Procedure
This test procedure outlines the necessary test equipment (test fixture, dynamometer, data acquisition system, etc.) and test sequence required to test for low-frequency brake noise (200 Hz to 1.25...

References

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