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On reduction of stress concentration around the pin hole in turbine discs

  • School of Energy and Power Engineering
  • Beihang University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The stress concentration phenomenon around holes in rotated components is discussed. Firstly, finite element analysis of a simplified model of turbine disc flange is carried out, and then a method is developed by designing an intended-cut notch on the model to reduce the stress around the pin hole. Furthermore, two characteristic parameters which determine the configuration of the notch, namely notch depth and arc length parameter, are investigated by changing the notch dimensions. The results show that this method can reduce the stress around the hole significantly, notch depth and arc length have an important impact on the stress concentration factor (SCF), the SCF decreases with the increase of notch depth, and increasing the arc length within a critical scope results in the decrease of the SCF.

Original languageEnglish
Title of host publicationStructural Engineering, Vibration and Aerospace Engineering
Pages55-58
Number of pages4
DOIs
StatePublished - 2014
Event2013 International Conference on Structural Engineering, Vibration and Aerospace Engineering, SEVAE 2013 - Zhuhai, China
Duration: 23 Nov 2013 → 24 Nov 2013

Publication series

NameApplied Mechanics and Materials
Volume482
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2013 International Conference on Structural Engineering, Vibration and Aerospace Engineering, SEVAE 2013
Country/TerritoryChina
CityZhuhai
Period23/11/13 → 24/11/13

Keywords

  • Finite element
  • Notch
  • Pin hole
  • Stress concentration
  • Turbine disc

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