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Reliability Analysis for Aero-engine Blades with Multiple Response Surface Method(PDF)

《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

Issue:
2016年06期
Page:
22-27
Research Field:
机械动力工程
Publishing date:

Info

Title:
Reliability Analysis for Aero-engine Blades with Multiple Response Surface Method
Author(s):
ZHANG Chun-yi1LIU Ling-jun1SUN Xu-dong2LU Cheng1SONG Lu-kai1WEI Wen-long1
Keywords:
    ( 1. School of Machinery and Power Engineering Harbin University of Science and Technology Harbin 150080 China  2. People's Liberation Army Navy Unit 91630 in Guangdong Guangzhou 510000 China)
PACS:
V232.4
DOI:
10.15938/j.jhust.2016.06.005
Abstract:
Considering the failure caused by common cause(multiple failure caused by local high temperature),multiple response surface method is used in order to study the reliability of aero-engine blade when it produces local burning in a short time.Through the static analysis and transient thermal analysis for different points of blade,it is concluded the impact when the top of blade occurs local high temperature is the biggest.Using Latin hypercube experimental method,four-fold response surface model of the total deformation,radial deformation,stress and temperature were got.Combined with the Monte Carlo method,the blade reliability was obtained.The results show that the reliability probability was 0.9991 when the blade allowable total deformation[δ]was 0.83 mm,the radial deformation [δ1]0.81 mm,the allowable stress[σ]1 045 MPa and the highest temperature [T]1 445℃.The computation time was 0.403 0 s.

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Last Update: 2017-02-28