Dynamic Analysis of 2.5D C/C Composites Finger Seal

Abstract:

For the finger seal, leakage and wear are key factors to affect its sealing performance and service life. To reduce the wear of the finger seal, C/C composites are probably used for finger seal material preparation for its self-lubrication and light weight properties compared with the metal. The work to be presented here assessed the elastic properties of the 2.5D C/C composites by the volume average method and established a finite element model for finger seal dynamic analysis. The results show that increasing warp yarn density and using shallow direct-joint structure can notably improve sealing performance of the finger seal, but can also increase contact pressure between the finger seal and the rotor.

• Periodical: Applied Mechanics and Materials (Volume 378)
• Pages: 159-164
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.378.159
• Online since: August 2013
• Authors: Fei Lu, Guo Ding Chen, Jian Liu
• Keywords: C/C Composites, Dynamic Analysis, Finger Seal

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