Tuned mass damper


by firedamage
Tags: damper, mass, tuned
firedamage
firedamage is offline
#1
Nov16-12, 04:36 AM
P: 3
Will a tuned mass damper damp down the excitation frequency ? Or it just reduce the vibration amplitude?

Thank you.
Phys.Org News Partner Science news on Phys.org
Review: With Galaxy S5, Samsung proves less can be more
Making graphene in your kitchen
Study casts doubt on climate benefit of biofuels from corn residue
pukb
pukb is offline
#2
Nov16-12, 05:02 AM
P: 90
Tuned mass damper is to increase natural frequency of a spring mass system so that frequency with to which system is subjected does not cause resonance.
firedamage
firedamage is offline
#3
Nov16-12, 08:05 AM
P: 3
Thank you,

So does it have effect on the amplitude of vibration?

pukb
pukb is offline
#4
Nov16-12, 10:51 AM
P: 90

Tuned mass damper


yes. at any frequency other than natural frequecy the system vibrates at lower amplitudes.
6Stang7
6Stang7 is offline
#5
Nov16-12, 06:30 PM
P: 212
This plot should help you understand.
http://upload.wikimedia.org/wikipedi.../Resonance.PNG
davidm1732
davidm1732 is offline
#6
Nov22-12, 11:24 AM
P: 20
A tuned mass damper adds an additional degree of freedom (dof) to the system, so it adds an additional resonance peak. If you started with a single dof system, and add a TMD, you would essentially split the resonance from one peak to two... so I wouldn't necessarily agree that the vibration amplitude would be lower at all frequencies other than the natural frequency...... That would be the case if you were simply adding damping to the system, but I'm not sure that's what you meant when you used the term "tuned mass damper"

Here's another Wiki link for tuned mass dampers.....
http://en.wikipedia.org/wiki/Tuned_mass_damper

So, are you adding damping, or a tuned mass damper?


Register to reply

Related Discussions
How do you calculate the damping force of a tuned mass damper? Engineering, Comp Sci, & Technology Homework 0
3d mass-spring-damper Classical Physics 7
spring,damper and mass Classical Physics 1
spring mass and damper Classical Physics 0
Tuned Mass Dampers General Physics 0