Submission
CYLINDER DEFORMATION SENSITIVITY STUDY USING FEA
DOI: 10.18462/iir.compr.2021.0397
Session: Reciprocating compressors 1
Accept state: Submission accepted
Authors
| Name | Organization | |
|---|---|---|
| Mattias Castro | Secop Austria GmbH | |
| Denis Nikitin | Secop Austria GmbH |
Abstract
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.
Keywords
Crankcase, Cylinder, Deformation, Cylindricity, Sensitivity