Explain Tuned Mass Dampers?
Answers
A tuned mass damper, also known as a harmonic absorber or seismic damper, is a device mounted in structures to reduce the amplitude of mechanical vibrations. Their application can prevent discomfort, damage, or outright structural failure. They are frequently used in power transmission, automobiles, and buildings.
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Tuned mass damper (also called vibration absorbers or vibration dampers) is a device mounted to a specific location in a structure, so as to reduce the amplitude of vibration to an acceptable level whenever a strong lateral force such as an earthquake or high winds hit.
Consequently, discomfort, damage, or outright structural failure caused by vibration in the structure will be prevented.
Types of Tuned Mass Damper (TMD)
1.Horizontal Tuned Mass Damper (TMD)
It is normally found in slender buildings, communication towers, spires and the like. Horizontal tuned mass damper (TMD) as shown in Fig. 1 composed of viscodampers and leaf springs or pendulum suspensions. it eats horizontal and torsional excitations.
2.Vertical Tuned Mass Damper (TMD)
It is usually applied in long span horizontal structures such as bridges, floors and walkways. Vertical tuned mass damper (TMD) as shown in Fig. 2 is a combination of coil springs and Viscodampers and it declines vertical vibrations.
*Both types have similar functions, though there might be slight differences in terms of mechanism.
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