RECENT STUDIES GIVE UNIFIED PICTURE OF TIRE NOISE

THE NOISE FROM TRUCK TIRES INCREASES WITH RISING SPEED, LOAD, AND WEAR. RECAPS OF AN OLDER DESIGN ARE NOISIER THAN ORIGINAL CROSS LUG TIRES WHICH, IN TURN, ARE NOISIER THAN RIB DESIGNS. IT IS POSSIBLE TO COMPARE FOUR SEPARATE STUDIES (BY GM, NBS, RMA, AND AN SAE COMMITTEE) BECAUSE EACH USED BASICALLY THE SAME PROCEDURE (THE SAE DRIVE-BY TECHNIQUE WITH A MICROPHONE 50 FT TO THE SIDE) TO MEASURE SOUND PRESSURE LEVEL (SPL). TRUCKS WERE COASTED PAST THE SOUND METER AT DIFFERENT SPEEDS, AND EACH INVESTIGATOR USED 50 OR 55 MPH FOR AT LEAST ONE RUN. /AUTHOR/

  • Authors:
    • Flanagan, W
  • Publication Date: 1972-4

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Filing Info

  • Accession Number: 00223761
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 16 1972 12:00AM