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Experiment of wearing characteristics and its effect on leakage of finger seal[J]. Journal of Aerospace Power, 2017, 32(1): 53-59. doi: 10.13224/j.cnki.jasp.2017.01.008
Citation: Experiment of wearing characteristics and its effect on leakage of finger seal[J]. Journal of Aerospace Power, 2017, 32(1): 53-59. doi: 10.13224/j.cnki.jasp.2017.01.008
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Experiment of wearing characteristics and its effect on leakage of finger seal

doi: 10.13224/j.cnki.jasp.2017.01.008
  • Received Date: 2015-04-12
  • Publish Date: 2017-01-28
    Abstract
  • Wearing characteristics of rotor and its effect on leakage of finger seals under three different kinds of fit, namely clearance fit, transition fit and interference fit, were experimentally investigated. The wearing of the rotor, wearing length of seal and distribution of leakage coefficient were analyzed. The results show that the wearing is severer when the sliding distance between the seals and the rotor increases. For finger seal with clearance fit, the seal is partially worn and the wear and its effect on the leakage mainly occur at the beginning of the experiment. For finger seal with interference fit, the whole seal is worn and the wear occurs throughout the experiment. The effect of wearing on the leakage is notable at the beginning and then is gradually decreased. The effect of wearing on leakage is greater when the clearance is smaller or the interference is larger.

     

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