Roush specializes in integrating design, analysis and testing to develop innovative solutions to noise and vibration issues. With a focus on value, we frequently analyze a variety of solutions to optimize both effectiveness and cost. From the development of simple design changes to the manufacturing of noise and vibration control products, Roush provides both prototype and production solutions.
We are often called upon to eliminate a fatigue failure or reduce a product's noise level by 3-5 dB(A). We have been very successful in developing innovative solutions for a wide array of products. Examples can be found in the Solutions section of this website.
Source/Structural Modifications
Our primary objective is controlling the source of excitation by improving product designs to enhance structural dynamic properties. Excitation sources are also controlled by addressing part-to-part clearances (i.e., gears, bearings, etc.) and mechanical impacting, or by minimizing the mass of moving components. Sources of excitation frequently interact with structural dynamics to cause instabilities such as brake noise and machine tool chatter. We are experts in providing practical, effective solutions to these problems.
Damping
Effective damping methods require expertise in material properties and structural dynamics. The damping solutions developed by Roush can take on many forms, including:
- Free layer
- Constrained layer
- Laminated metal
- Tuned mass dampers
- Damping links
- Particle dampers
- Viscous absorbers
- Active absorbers
Isolation
Vibration isolation is often a practical, effective suppression technique, which breaks the path of noise and vibration by separating the source from the receiver. Effective isolation design requires an extensive knowledge of elastomer material properties, and can require our expertise in advanced analytical techniques to examine complex dynamics.
Acoustic Absorption/Barriers/Enclosures
To minimize reverberation and break the transmission path, acoustic materials can be strategically designed and applied for maximum acoustic absorption and transmission loss performance.