1970-02-01

Establishment of Roof Rail Sealing Parameters for Automobile Bodies 700097

The reduction of sound levels in modern automobiles has called attention to wind whistles in the body side sealing systems. Methods employed to establish sealing design parameters are reviewed and the primary cause of wind noise in the body side sealing system is defined as a loss of glass-to-weatherstrip contact, produced by door glass “blowout” in vehicles traveling at highway speeds. A program of controlled dynamic testing resulted in design parameters that have produced body side sealing systems which, together with improved assembly techniques, have increased the first test-run wind noise acceptability rate for 1970 model year vehicles.

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