propeller fans

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Anonymous Poster	propeller fans 03/25/2009 12:28 PM
	I'm a student doing my diploma. can you suggest me what are all the sources of vibration on propeller fans i.e,what causes the vibration in these type of fans
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user-deleted-1105 Guru Join Date: May 2007 Location: Harlow England Posts: 16512 Good Answers: 670	#1 Re: propeller fans 03/25/2009 12:51 PM
	How about you tell us all the sources you can think off? Then we can add any that we think you have missed? Del __________________ health warning: These posts may contain traces of nut.
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Anonymous Poster	#2 Re: propeller fans 03/25/2009 1:22 PM
	One lesser-known source of vibration of propeller fans occurs when the normal vortex eminating off each blade's trailing surface is "broken up" due to interfering shearing wind forces generated by the combined exasperated sighs of people who read questions like yours.
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