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Research on influence of swing of crankshaft-rotor shaft system on noise performance of inverter rotary compressor.

Number: pap. L46

Author(s) : SHEN H., WANG W., SUN W., et al.

Summary

Regarding to high noise peak appeared between 400~500Hz during development of certain compressor, the modal frequency and modal shape of high peak appeared between 400~500Hz were identified via sound source locating vibration test, order analysis/modal test and simulation analysis with FEM software. It was found that the shaft-rotor unit swing was the main reason to cause noise peak value of the compressor. The simulation optimization analysis was carried out to shaft-rotor unit swing with the help of FEM software. The verifications were made to the structure, including enlarging shaft diameter, enlarging top flange unit, and increasing rigidity of shaft-rotor unit. The structural tests were made to prove the feasibility of improvements. The results could be used to improve noise problem of inverter compressors.

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Pages: 8

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Details

  • Original title: Research on influence of swing of crankshaft-rotor shaft system on noise performance of inverter rotary compressor.
  • Record ID : 30022066
  • Languages: English
  • Source: 8th international conference on compressors and refrigeration, 2017.
  • Publication date: 2017/07/20

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