FE Analysis on Contact Properties between Root- Blade and Slot-Disc

Abstract:

The contact problem between root-blade and slot-disk structure of compressor is of much importance, because there is serious stress concentration in the structure, which is one of the parts with multi faults in aero-engine. First, finite element model for dovetail attachment is established to analyze stress concentration effects. Then, the stress distribution and other parameters such as contact pressure is obtained through contact analysis. In this paper, the finite element method based on contact analysis is used. Calculating results show that equivalent stress, contact pressure of blade-disk structure increase steadily as the rotating speed increases.

• Periodical: Advanced Engineering Forum (Volumes 2-3)
• Pages: 932-935
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.2-3.932
• Online since: December 2011
• Authors: Bo Ping Wang, Jiao Wang, Xing Zhan Li, Qing Kai Han
• Keywords: Contact Properties, Different Rotating Speeds, Root-Blade, Slot-Disk

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