Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

How to measure or calculate natural frequescy of a machine

Thread starter nkb
Start date Feb 17, 2003

Status: Not open for further replies.

Feb 17, 2003

nkb

Mechanical

Hi

I am designing an electrical machine which has 3 cubical of size (30”x20”x10”) connected together side by side.

Each cubical is full of 20 to 30 electronic components like capacitors, resotors etc. . Each cubical has a fan mounted on its front for cooling.

I was told that I should find out the natural frequency of the structure so that it does not create resonance with the FAN frequency.

My question is:
Can any one tell me how the natural frequency of this type of structure is calculated and also if possible tell me material to read for my knowledge in this area.

Thanks in advance,

nkb