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Reversing Design Methodology of Ceramic Core for Hollow Turbine Blade Based on Measured Data

[+] Author Affiliations
Yangliu Dou, Fengjun Yan

McMaster University, Hamilton, ON, Canada

Kun Bu

Northwestern Polytechnical University, Xi’an, Shaanxi, China

Paper No. IMECE2014-38284, pp. V02AT02A051; 9 pages
doi:10.1115/IMECE2014-38284
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 2A: Advanced Manufacturing
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4643-8
  • Copyright © 2014 by ASME

abstract

The precision of complex ceramic core is one of the essential factors for hollow turbine blade manufacturing, which has a significant impact on the development of the modern aircraft engine. In terms of the low precision of ceramic core formation, this paper proposes an approach through measuring the data from a group of ceramic cores, to study the computational methods for displacement field, deformational feature decoupling, and structural shrinkage ratio. Based on modeling and analysis of decoupled deformational features and the uneven structural shrinkage ratio, this paper proposes an inverse design method and optimizes the design of the die profile for ceramic core. The applicability of this method is validated using numerical simulation data and experimental results.

Copyright © 2014 by ASME

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