Article | REF: BM4179 V1

Pump noise

Author: Jean POULAIN

Publication date: July 10, 1998

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5. Computational noise prediction

Noise prediction remains a difficult problem, requiring considerable computing resources. It can only be done on an approximate basis. We will deal here only with the 2 main lines encountered on a pump:

  • the line at rotation speed N, of mechanical origin ;

  • the line at frequency n r N (scrolling of the impeller blades).

5.1 Line at frequency N

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5.1.1 Determining the forces transmitted...

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