Uncertainty propagation analysis for turbine cooling blade multidisciplinary design

Kuahai Yu, Jun Ni, Xi Yang, Zhufeng Yue

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents an uncertainty propagation analysis method using the Convex Model Theory (CM) for turbine cooling blade multidisciplinary design. Convex Model is used to describe the design variables' uncertainty, and it's propagation equation is derived. Monte-Carlo(MC) method and Convex Model Theory (CM) are all employed to calculate target variable's variation. Result shows that CM method is more time-saving than MC method. First order second moment method is employed to calculate the reliability of target variable's variation to evaluate the difference of the results of the two methods. As the actual probability density function of design variables is unknown, so reliability analysis considers different probability density functions. Response surface method is used to construct the approximation of the multidisciplinary analysis. Reliability analysis result shows that CM method keeps the same accuracy with MC method.

Original languageEnglish
Title of host publicationAdvanced Mechanical Engineering
Pages789-793
Number of pages5
DOIs
StatePublished - 2010
Event2010 International Conference on Advanced Mechanical Engineering, AME 2010 - Luoyang, China
Duration: 4 Sep 20105 Sep 2010

Publication series

NameApplied Mechanics and Materials
Volume26-28
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2010 International Conference on Advanced Mechanical Engineering, AME 2010
Country/TerritoryChina
CityLuoyang
Period4/09/105/09/10

Keywords

  • Convex model
  • Multidisciplinary design
  • Reliability
  • Turbine cooling blade
  • Uncertainty

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