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Lowering noise from upper floors using a dynamic
damper
 Using
rubber to reduce automobile vibration is a popular technology in the
auto industry. TG has applied a dynamic damper used in the technology
to general houses.
It was the long challenge for the housing industry, especially in
apartments and condominiums, to eliminate the uncomfortable, stressful
sound generated when people walk or jump on a floor above. It was
learned that this uncomfortable sound has lower frequencies and caused
mainly by vibration in an impact. TG developed a dynamic damper exclusively
for houses which is installed on a steel beam between floors to significantly
reduce vibration and eliminate noise. |
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Adopting butyl rubber effective in a broad frequency
area
 A
dynamic damper is made of butyl rubber and mass, and cuts sympathetic
vibration by setting the resonance frequency of a beam for the damper
(setting rubber specifications and mass values). It is effective not
only in the low frequency area but also the heavy impact sound area
(low frequency vibration) and the light impact sound area (high frequency
vibration).
Vibration in a detached house can be prevented by installing a dozen
dampers. The product has been used by housing manufacturers and will
be installed on a steel framed house in spring 2003. We will promote
its sales in the housing industry widely in the future. TG’s
rubber technology to prevent vibration is used in electric appliances
including video cameras too. |
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