An impact test on a vertical motor and pump head identifies two separate, cleanly defined natural frequencies
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An impact test on a vertical motor and pump head identifies two separate, cleanly defined natural frequencies (see below), one lower than the other. What is the most logical reason for this difference?
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Ali Khawaja
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Related Book For 
Rotating Machinery Reliability For Technicians And Engineers
ISBN: 271009
1st Edition
Authors: W. Ron Brook
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