Study of the Dynamic Characteristics of a High-Pressure Labyrinth Seal Considering Rotor Whirling

다국어 초록 (Multilingual Abstract)

This article describes the calculation procedure for the dynamic characteristics of a high-pressure labyrinth seal wherein the friction force and rotor whirling force are considered; SFCP, the commercial code developed by Lee and two colleagues, is used in the procedure. The simulation results were reviewed in comparison to those of the experiments provided by Benckert; additionally, the SFCP simulation results were verified using the CFD analysis presented by Toshio Hirano. This calculation procedure may therefore be applied to the dynamic characteristics of the labyrinth seals of high-pressure turbo machinery.

참고문헌 (Reference)

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2 Ahn, J. H., "Reduction of Leakage through Labyrinth Seal in a Steam Turbine by Modification of the Teeth Shape" 857-862, 2009

3 Gans, B. E., "Prediction of the Aero-Elastic Force in a Labyrinth Seal and Its Impact on Turbo Machinery Stability" Massachusetts Institute of Technology 1983

4 Benckert, H., "Flow Induced Spring Constants of Labyrinth Seals" 189-212, 1980

5 Hirano, T., "Application of CFD Analysis for Rotating Machinery : Part 2-Labyrinth Seal Analysis" 661-667, 2003

6 Hur, J. -H., "Analysis of Leakage through Labyrinth Seal in a Steam Trubine Due to Modification the Teeth Angle" 313-318, 2009

7 Lee, K. J., "A Study on the Dynamic Coefficient of Labyrinth Seals in a High Pressure Steam Turbine Considered to Whirl Motion" 145-146, 2010

8 Lee, K. J., "A Study on the Dynamic Coefficient of Labyrinth Seals in a High Pressure Steam Turbine" Changwon National University 2009