Blown bulbs on a constant bais would be a voltage regulation problem or the wrong bulbs for the running voltage of the car.
If the regulator is faulty the voltage will spike when you rev the motor to high ,and blow the bulb.
The increased voltage shortens the life of the filament in the bulb ,normally the low beam because it is on 90% of the time.
The cheapest solution to try is replacing the voltage regulator on the altenator instead of the whole altenator.
Also check the connections at the bulbs to make sure there tight.A loose connection will cause issues as well.
2006 Cobalt SS Super Charged