Roof Rack Wind Noise Reduction

Results from experimental modal analysis and sound pressure spectrum measurement in a wind tunnel indicate the direction of design modification for reduction of the roof rack noise and vibration.

Roof rack wind noise reduction.

Will either of those things do much to reduce wind noise. You may not recognize it but even crossbars from a ski rack or an empty roof basket create a barrier against the wind that will make some annoying sound or noise. Wind fairings are usually universal but are available in different lengths to fit your vehicle. A wind fairing s goal is to reduce the wind noises which are brought about by the roof rack you have placed in your vehicle.

When i had it on i realized i had to. I was working on adapting a roof rack on the 4runner it made a lot of wind noise enough that i took it off until i had time to work on a deflector for the front and get the plywood in the basket. If the surface the wind passes over has a consistent shape the disturbance becomes tonal and at certain frequencies very annoying. The wind noise we hear from some roof racks is known as aeolian no ise and is produced by wind when it passes over or through objects.

Although wind fairings do not eliminate the noise 100 percent it does minimize it significantly to prevent you from being distracted while you are driving. A roof rack wind fairing is an easy to install plastic shield that deflects wind away from the roof rack therefore reducing wind noise. The top section of the wind fairing attaches to the front crossbar while the bottom rests on top of the car.