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| Vibration of a sheetmetal |  | ||
| Post Reply | Engineering Forum | ||
| Posted by: rikas ® 06/15/2009, 08:02:02 Author Profile eMail author Edit |
hi all,
the vibration of a sheet metal panel with lesser thickness is higher than a thicker one....can u tell me y? and also, is this right? dat " thicker panel will take more time to damp out than thinner one" and reason for this is its inertia rite? appreciate ur help.... |
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| : Vibration of a sheetmetal -- rikas | Post Reply | Top of thread | Engineering Forum |
| Posted by: bpd ® 06/15/2009, 11:02:23 Author Profile eMail author Edit |
I'm sure the difference has to do with resonant frequency, which is just the frequency at which something naturally vibrates. The resonant frequency of the smaller panel is different (probably lower, all else being equal) than that of the large panel. When the resonant frequency gets closer to the input frequency (from the motor or whatever), vibration tends be amplified more. If you change the stiffness of the sheet or the mass, you can change the resonant frequency and the vibration response. Mass is directly proportional to thickness, stiffness is proportional to thickness cubed. |
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