Multiobject reliability analysis of turbine blisk with multidiscipline under multiphysical field interaction

Chun Yi Zhang, Cheng Lu, Cheng Wei Fei, Ling Jun Liu, Yat Sze Choy, Xiang Guo Su

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

To study accurately the influence of the deformation, stress, and strain of turbine blisk on the performance of aeroengine, the comprehensive reliability analysis of turbine blisk with multiple disciplines and multiple objects was performed based on multiple response surface method (MRSM) and fluid-thermal-solid coupling technique. Firstly, the basic thought of MRSM was introduced. And then the mathematical model of MRSM was established with quadratic polynomial. Finally, the multiple reliability analyses of deformation, stress, and strain of turbine blisk were completed under multiphysical field coupling by the MRSM, and the comprehensive performance of turbine blisk was evaluated. From the reliability analysis, it is demonstrated that the reliability degrees of the deformation, stress, and strain for turbine blisk are 0.9942, 0.9935, 0.9954, and 0.9919, respectively, when the allowable deformation, stress, and strain are 3.7 × 10-3 m, 1.07 × 109 Pa, and 1.12 × 10-2 m/m, respectively; besides, the comprehensive reliability degree of turbine blisk is 0.9919, which basically satisfies the engineering requirement of aeroengine. The efforts of this paper provide a promising approach method for multidiscipline multiobject reliability analysis.
Original languageEnglish
Article number649046
JournalAdvances in Materials Science and Engineering
Volume2015
DOIs
Publication statusPublished - 1 Jan 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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