Panel Vibration
 

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Description:
Calculation Preview

Calculate natural frequency of a rectangular flat plate with simply supported edges.

Calculation Reference
Harris' Shock and Vibration Handbook
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Submitted On:
03 Mar 2014
Submitted By:
Boffin
File Date:
03 Mar 2014
File Version:
1.1
File Size:
37.87 Kb
File Type:
xlsx
Downloads:
524
Rating:
stars/4.gifTotal Votes:7
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Comments  

 
#6 RobertRowley 2014-03-04 08:00
Quoting JohnDoyle[Admin ]:
Hi Bob actually the units are mm and tonnes so my density is tonnes/mm^3. Also notice that acceleration due to gravity is mm/s^2. So I think the calculation is fine.

The choice of units might seem a little odd but I often work in mm when modelling using finite element software. The handcalc is a sense check on my FE model results.


Thanks John, I missed the Te/mm3 I had not seen that before
 
 
#5 JohnDoyle[Admin] 2014-03-03 19:27
Hi Bob actually the units are mm and tonnes so my density is tonnes/mm^3. Also notice that acceleration due to gravity is mm/s^2. So I think the calculation is fine.

The choice of units might seem a little odd but I often work in mm when modelling using finite element software. The handcalc is a sense check on my FE model results.
 
 
#4 RobertRowley 2014-03-03 17:30
Could you please check your steel Your Density of material. 7860 kg/m3.

you have entered 0.000000000786 kg/mm3

1 kilogram / cubic meter = 1.0 10-9 kilograms / cubic millimeter

So your imput for steel should be 7860 * 10-9.

0.00000786.

If I have missed anything then sorry.
 
 
#3 yapigrup 2010-07-23 20:50
Thanks.
 
 
#2 famighetti 2007-04-20 16:42
Looks okay, I won't have immediate use for the program, but will save it.
 

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