Regulation of Commercial Motor Vehicle Interior Noise Levels

This paper reports and analyzes two sets of test data that were taken to determine the interior noise levels of typical heavy-duty trucks. Under controlled test conditions, various stationary tests were run in an effort to correlate their results with those obtained during SAE J366 and J336 dynamic tests conducted at the same time. In addition, sound level exposures were determined for various over-the-road operations in an attempt to correlate these results with the static test results.