Tuned mass damper

Main page: Earthquake engineering

After seismic waves make a structure vibrate, a tuned mass damper (or seismic damper) can decrease their damaging effect and improve the building's seismic performance.^[1] Vehicles use small dampers and buildings use large ones. Some examples of dampers' design and implementation are presented in the images below:

Heavy damping Lead-Rubber Bearing being tested at the UCSD facility.
Tuned mass damper in Taipei 101, the world's second tallest skyscraper.
Pyramid-shaped skyscraper to prevent buildings' resonant amplifications.

Tuned Mass Damper Media

Tuned mass damper atop Taipei 101
Shanghai Tower tuned mass damper
A schematic of a simple spring–mass–damper system used to demonstrate the tuned mass damper system
A Bode plot of displacements in the system with (red) and without (blue) the 10% tuned mass.
Tuned mass damper inside bridge deck of the Jan Linzelviaduct
The small black objects attached to the cables are Stockbridge dampers on this 400 kV power line near Castle Combe, England
Dampers on the Millennium Bridge in London. The white disk is not part of the damper.

Related pages

Seismic Dampers Archived 2014-05-14 at the Wayback Machine
Seismic vibration control

References

↑ Chu, S.Y.; Soong, T.T.; Reinhorn, A.M. (2005). Active, Hybrid and Semi-Active Structural Control. John Wiley & Sons. ISBN 0470013524.{{cite book}}: CS1 maint: multiple names: authors list (link)

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[ActiveHybrid-1] Chu, S.Y.; Soong, T.T.; Reinhorn, A.M. (2005). Active, Hybrid and Semi-Active Structural Control. John Wiley & Sons. ISBN 0470013524.{{cite book}}: CS1 maint: multiple names: authors list (link)

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