Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Fatigue-characteristic Evaluation of a Ventilating Blade in the Air-conditioner

냉방기용 송풍 Blade의 피로특성 평가

  • 최정훈 (성균관대학교 기계공학부 일반대학원) ;
  • 구재민 (성균관대학교 기계공학부) ;
  • 석창성 (성균관대학교 기계공학부) ;
  • 김종학 (캐리어 에어컨) ;
  • 장성용 (한국 전력공사 전력연구원 수화력 발전연구소)
  • Received : 2009.12.11
  • Accepted : 2010.06.10
  • Published : 2010.11.01
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Abstract

The fatigue characteristic of a material or a structure is derived from fatigue tests of standard specimens. However, many test results of standard specimens are very different from those of real structures. One reason for this difference is the constraint effects according to the geometrical difference. Therefore, to calculate more accurate fatigue life, the constraint effect must be considered by comparing test results of standard specimens with those of real structures. In this study, a blade of an air-conditioner was evaluated by both the test and the analysis. The results showed that a standard specimen is conservative, compared with a structure specimen. And fatigue life of an air-conditioner's blade was predicted from those.

Keywords

References

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