Back Gestemde massademper Afrikaans مثبط ثقلي متناغم Arabic Schwingungstilger German Amortiguador de masa Spanish Reguleeritav amortisaator kõrghoonetele Estonian میراگر Persian Viritetty massavaimennin Finnish Amortisseur harmonique French Mass damper Italian 動吸振器 Japanese
 | This article may be too technical for most readers to understand. (March 2020) |
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 Photo of the tuned mass damper at 432 Park Avenue |
A tuned mass damper (TMD), also known as a harmonic absorber or seismic damper, is a device mounted in structures to reduce mechanical vibrations, consisting of a mass mounted on one or more damped springs. Its oscillation frequency is tuned to be similar to the resonant frequency of the object it is mounted to, and reduces the object's maximum amplitude while weighing much less than it.
TMDs can prevent discomfort, damage, or outright structural failure. They are frequently used in power transmission, automobiles and buildings.