Vehicle Noise and Vibration Control

Problem: Military vehicles, unlike automotive passenger cars, can be relatively noisy inside. However, military specifications limit the amount of noise exposure to its occupants. Roush has applied its noise and vibration control expertise to a range of military vehicles.

Solution: In early stages of development Roush was contracted to develop noise control treatments for a new military vehicle. Noise and vibration measurements were made during vehicle operation to identify airborne and structure borne noise sources and paths. Acoustic barriers, acoustic absorption materials, constrained-layer damping systems, and new component designs were implemented on the vehicle.

Results: The noise levels inside and outside of the vehicle met or were under the military maximum noise specifications. Roush worked with the production supplier of the acoustic package to bring the treatments from the test lab into full scale production.