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Research on vibration characteristics of meshing pair in single screw compressors.

Number: pap. 1284

Author(s) : PENG C., ZHANG Z., XIONG P., et al.

Summary

The single screw compressor is a kind of rotary compressor with excellent performance, and has a series of advantages, such as simple structures, remarkable mechanical balance, high volume efficiency, large machine capacity, and etc, all of which allow for promising application prospects of it in areas such as air compression, refrigeration, waste heat recovery and other fields. The screw and star wheel in a single screw compressor play a key role in the performance of the compressor, and their dynamic characteristics affect the vibration characteristics of the single screw compressor and the attrition rate of the star wheel directly.
In this paper, a 3-D geometric model of meshing pair of the single screw compressor was established. And modal mode analysis of screw and star wheel was conducted with the help of ANSYS Workbench R16.1 finite element analysis simulation platform. The vibration characteristics of screw and star wheel were predicted by solving their respective natural frequency, critical speed and so on. It was found that great significance does exist between inherent frequency of screw rotor and excitation frequency it stirred and no potential trouble of resonance was found. The natural frequencies of star wheel varied greatly with materials. And resonance of the cast iron star wheel occurred in a relatively scare chance.

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Pages: 9

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Details

  • Original title: Research on vibration characteristics of meshing pair in single screw compressors.
  • Record ID : 30024274
  • Languages: English
  • Source: 2018 Purdue Conferences. 24th International Compressor Engineering Conference at Purdue.
  • Publication date: 2018/07/09

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