A layered damping system, a vibration-damping sheet, is inserted in between rigid materials. For example, a Green Glue Compound is commonly installed in between drywall layers. The vibration damping materials are what allows for energy to turn into heat. Industrial vibration damping sheets are used for sound and vibration damping on metal panels. These materials can withstand high and low temperatures. The application of these sheets is utilized for a multitude of uses, including buses and railroad cars, ships and boats, generator enclosures, off-highway equipment, hoppers, and more.
When a damping product is applied to the top of a surface, it is known as an extensional damping system. SoundampE is an example of an extensional damping system. In these systems, energy is turned into heat when the SoundampE is bent. The moment it is impacted, the sound that is against the vibration damping sheet is impacted. This causes another layer to extend and compress which leads to the sound energy changing into heat. Damping products are best for lightweight and are effective in their use. Damping sheets work best for sheet metal and plumbing. The use of these materials for wall and floor assemblies are not useful.
With partition, the mass allows for resistance to airborne sound waves. To vibrate a heavy partition, a massive amount of noise is needed. However, when airborne noises are applied, it becomes easy for a partition to vibrate. This is commonly known as the resonance point. Partitions with a vast amount of damping sheets are commonly found with wood and drywall. They can have higher resonance problems with no changes occurring in thickness. This issue is lessened with damping sheets that are inserted in between material layers.
To determine a product’s usefulness and overall performance, STC results from testing are utilized. The sound that spreads throughout a structure is not able to be tested correctly while in an acoustics lab. If low damping is present, sound vibrations it is more likely for it to travel in between materials at longer distances. Examples of this would be the transferring of sound from walls to floors, et. However, with high damping, sound cannot travel as easily throughout an area and vibration quickly exhausts.
Damping and Compound Sheets at IES-2000
As mentioned, industrial SoundamPE vibration sheets are self-adhesive vibration damping pads that are commonly used for sound and vibration damping on metal panels. The odorless and wear-resistant material is intended to prevent the absorption of water. At IES-2000 damping and compound sheets are offered for multiple applications. Damping compounds are also provided that assist in noise reduction purposes. For more information about damping and compound sheets, contact IES-2000 today.