Numerical Analysis for the Stability of Cylinder Gas Film Seal

Abstract:

Non-contacting gas film seal applies to the high speed working condition and a numerical method was presented for analyzing the effect of speed on the stability of cylinder gas film seal. The dynamics analysis model was established, solving the time-dependent Reynolds equation coupling with the dynamic equations. Through numerical simulation, the critical speed of cylinder gas film seal system and the diagram of critical mass versus rotor speed were obtained. The influence of the speed on dynamic stability was studied. The results show that the system stability becomes worse as rotor speed increases.

• Periodical: Advanced Materials Research (Volumes 655-657)
• Pages: 526-530
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.655-657.526
• Online since: January 2013
• Authors: Gang Ma, Jun He, Xin Min Shen
• Keywords: Coupling Solution, Critical Speed, Cylinder Gas Film Seal, Numerical Calculation

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