A5 Quattro Coupe (8T3) L4-2.0L Turbo (CAEB) (2011)
Harmonic vibrations
The wheel force variations during the turn of the wheel can be mathematically divided into individual harmonic vibrations.
For an objective assessment of the tire stiffness, the first harmonic (the basic vibration) is used.
The basic vibration or first harmonic is the share of the radial force variation that causes the strongest vibrations.
On Audi vehicles the first harmonic (road force) must be 18 lbs. or less.
PRODUCTION SOLUTION
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