This procedure provides for the measurement of the sound generated by a test tire@ mounted on a single-axle trailer@ operated at multiple speeds. The procedure describes test practices for both United States and International practices. Specifications for the instrumentation@ the test site@ and the operation of the test apparatus are set forth to minimize the effects of extraneous sound sources and to define the basis of reported sound levels.
SAE J57-2014由SAE - SAE International 发布于 2014-05-01,并于 2014-05-20 实施。
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