THEORETICAL ANALYSIS AND EXPERIMENTAL INVESTIGATION OF SPIRAL GROOVE DRY RUNNING NONCONTACTING GAS SEALS

›› 2003, Vol. 39 ›› Issue (4): 124-127.

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THEORETICAL ANALYSIS AND EXPERIMENTAL INVESTIGATION OF SPIRAL GROOVE DRY RUNNING NONCONTACTING GAS SEALS

Xu Wanfu;Liu Yuchuan;Li guangyu;Xu lifu;Shen Xinmin

Shenyang Institute of Technology Tsinghua University Beijing University of Aeronautics and Astronautics

Published:2003-04-15

Abstract

Abstract: Spiral groove dry running non-contacting gas seals named after“Wlndef 288 type” is designed and manufactured. Its angular wobbly self-excited whirl with “half-frequency” and the gas film resonant whip is analyzed. The commercial DGS is tested for 3 000 h nearly(to start-up and stop for 100 time), Its property is excellent by description of experimental investigation data.

Key words: Gas film resonant whip, Self-excited whirl with “half-frequency”, Spiral groove dry running gas seals, Stability

CLC Number:

V233.42

Xu Wanfu;Liu Yuchuan;Li guangyu;Xu lifu;Shen Xinmin. THEORETICAL ANALYSIS AND EXPERIMENTAL INVESTIGATION OF SPIRAL GROOVE DRY RUNNING NONCONTACTING GAS SEALS[J]. , 2003, 39(4): 124-127.

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THEORETICAL ANALYSIS AND EXPERIMENTAL INVESTIGATION OF SPIRAL GROOVE DRY RUNNING NONCONTACTING GAS SEALS

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