AFFORDABLE CAE & CFD ANALYSIS


AIR DUCT ACOUSTICS

 


CFD ANALYSIS


THERMAL


SHELL-NOISE

 
 

 

EXTERNAL LAPTOP COOLING FAN
SHELL NOISE ANALYSIS

Structure-born noise is dominated by the first natural mode of vibration which is 842 Hz for this plastic assembly.

 

Reduction of structure-born noise will require a significant increase in assembly stiffness. This will require using a stiffer material on the assemblies flat bottom such as aluminum. An aluminum bottom increases the 1st natural mode from 842 Hz to 3374 Hz and will be significantly quieter.

 

 
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Revised: 02/06/09.