http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
수치해석에 의한 자동차 배기시스템의 벨로우즈 신뢰성평가에 관한 연구
오상기(S. G. Oh),이승호(S. H. Lee),심동석(D. S. Sim),백문열(M. Y. Baek),이교승(K. S. Lee),김홍성(H. S. Kim),박형배(H. B. Park) 한국동력기계공학회 2005 한국동력기계공학회 학술대회 논문집 Vol.- No.-
Bellows is a familiar component in piping systems as it provides a relatively simple means of absorbing thermal expansion and providing system flexibility. In routine piping flexibility analysis by finite element methods, bellows is usually considered to be straight pipe runs modified by an appropriate flexibility factor; maximum stresses are evaluated using a corresponding stress concentration factor. In this paper, the dynamic characteristics of bellows were investigated by Finite element methods. Using Anany program, the natural frequencies and evaluation of the reliability of bellows were also investigated.
조을훈(E. H. Cho),김정균(J. K. Kim),오상기(S. G Oh),이승호(S. H. Lee) 한국소성가공학회 2011 한국소성가공학회 학술대회 논문집 Vol.2011 No.5
Recently, it is developed a variety of electrical contacts on the switch. The contacts will be processed for 2.30 of embossing type as a three-cladding material (Ag-Cu-Fe) used. Embossing type of electrical contacts are working to increase the hardness without plate thickness of the material and local plastic deformation of the shape in process. In this study, we are made of contact in total of 5 spot embossing and measured outside diameter, depth in jig pin by using microscope, respectively. We were found that the important of height, outside diameter of embossing because of spot process for joined bimetal and contact in processing of manufacture thermostat. The pin was formed by the processing for HSS material by E.D.M (electrical discharge machine)