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Cylinder deformation sensitivity study using fea.

Number: 0397

Author(s) : DA SILVA CASTRO M., NIKITIN D.

Summary

When trying to increase efficiency of a hermetic compressor, one of the critical challenges to solve is the topology of the crankcase in order to have acceptable deviations on the cylinder region. The shape of the cylinder significantly affects the efficiency, performance and reliability of the compressor. The aim of this work is to use finite element analysis to predict cylinder deformation and investigate which factors significantly affect it by using sensitivity analysis. Among the factors evaluated are screws assembly torque, material properties, gasket properties, temperature and stator stiffness. Experimental measurements showed good correlation with the simulation considering cylindricity values and deformed shape. The sensitivity analysis allows to estimate how the cylindricity error is accumulated to the manufacturing errors, resulting in a cylindricity error statistic distribution.

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Pages: 7

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Details

  • Original title: Cylinder deformation sensitivity study using fea.
  • Record ID : 30028233
  • Languages: English
  • Subject: Technology
  • Source: 10th IIR Conference on Compressors and Refrigerants.
  • Publication date: 2021/01/13
  • DOI: http://dx.doi.org/10.18462/iir.compr.2021.0397
  • Document available for consultation in the library of the IIR headquarters only.

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