콘텐츠 본문
논문 국내 국내전문학술지(KCI급) 광탄성기법을 이용한 터빈로터 퍼트리부의 응력해석
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 1996-06
- 저자명 신광복, 경우민, 김천곤, 홍창선, 박희용
- 학술지명 대한기계학회 논문집 A권
- 발행처명 대한기계학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 5
논문 초록 (Abstract)
The disk/blade assembly of a turbine engine is made in the shape of a dovetail type or a fir-tree type. Since disk fillet regions or contact surface undergo high stress concentration. fatigue cracks frequently occur in the disk/blade assembly. Therefore, it is necessary to analyze the stress distributions in the fir-free type disk/blade assembly and predict the region of fatigue failure. The stress distributions of the disk/blade assembly were investigated by using the photoelastic method and the finite element method. Two dimensional photoelastic techniques were used to investigate the stress distributions of contact surface and fillet regions. The stress distributions were obtained by the shear-difference method and were compared to the finite element results. It was found that maximum tensile stresses were higher in the fillet region than in the contact surfaces of the fir-tree models. The finite element results showed good agreement with the experimental results.
