cracked fan blade

Read our primer articles on Vibration Analysis and Laser Alignment Tools.

I need help understanding what might be the common symptoms of a cracked fan blade.

11/16/065:21 AM

Original Post

You take the vibration spectrum & notice whether there is any peak at working RPM * no of vanes.
Cracked vane will give high frequency vibration & which will match with rpm X no of vales. Generally it will be in radial direction.

roytk@sify.com

4/6/072:46 AM

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