The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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A Rotordynamic and Stability Analysis of Process Gas Turbo-Compressor in accordance with API 617 Standard

API 617 규격에 의거한 프로세스 가스 터보압축기의 로터다이나믹 해석 및 안정성 검토

  • 김병옥 (한국기계연구원 시스템다이나믹연구실) ;
  • 이안성 (한국기계연구원 시스템다이나믹연구실)
  • Published : 2009.10.01
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Abstract

A rotordynamic and detailed stability analysis in accordance with API 617 standard were performed with a turbo-compressor, which is one of key rotating machinery in refinery, petroleum, and power plants. The system is composed of rotor shaft, impeller, sleeve hub, balance drum, and coupling hub. The rotor system is supported by tilting pad bearings, which has 5 pads and pad on loading condition. The rotordynamic analysis specified by API 617 includes the critical speed map, mode shape analysis, Campbell diagram, unbalance response analysis, and stability analysis. In particular, the specifications of stability analysis consist of a Level 1 analysis that approximates the destabilizing effects of the labyrinth seals and aerodynamic excitations, and Level 2 analysis that includes a detailed labyrinth seal aerodynamic analysis. The results of a rotordynamic analysis and stability analysis can evaluate the operating compressor health and can be utilized as a guide of its maintenance, repair and trouble solution.

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References

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  1. vol.13, pp.1, 2010, https://doi.org/10.5293/KFMA.2010.13.1.069
  2. A Study on Repair Case of Journal and Bearing Damage for 25MW Industrial Gas Turbine vol.15, pp.6, 2012, https://doi.org/10.5293/kfma.2012.15.6.064