http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 양동열(D. Y. Yang) (검색결과 260 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
열 공구를 이용한 쾌속 폼 가공 공정 개발에 관한 연구
김효찬(H. C. Kim),이상호(S. H. Lee),송민섭(M. S. Song),양동열(D. Y. Yang),박승교(S. K. Park) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
Recently, life cycle and lead-time of products have been shortened with the demand of customers. Therefore, it is important to reduce time and cost at the step of manufacturing trial molds. In order to realize three dimensional shape on CAD, the machining process has been widely used because it offers practical advantages such as precision and versatility. However, traditional machining process spends a lot of time in cutting product and the remained material causes trouble such as inconvenience for clean. In this work, a new machining process using the hot tool has been proposed to overcome those limitations. In the process, the hot tool moves the predetermined path and the heat of the tool decomposes the remained material. In order to set up the process, the hot tool to satisfy requirements is designed and the material thermal properties are obtained using the DSC and TGA machine. The relationships between process parameters and thermal radius of the tool are obtained through experiment.
-
김종봉(J.B.KIM),이동우(J.W.YOON),윤정환(D.W.LEE),양동열(D.Y.YANG) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_2
2D finite element analysis for the drawbead forming and drawing was carried out. The present study is concerned with the element behavior in bending dominant deformation. In order to investigate the behavior of a 4-node bilinear element and a 9-node quadrilateral element in the tensile mode and in the bending mode, the simple tensile deformation and the transverse shear deformation were analysed. Also, the drawbead forming and drawing was analysed using the two types of elements. The comparison of the computations with the experiments sbows that the 9-node element is more effective than the 4-node element in bending dominant processes.<br/>
-
-
-
-
-
비드가 있는 직사각컵 딥드로잉 공정의 3차원 유한 요소 해석의 비교 연구
양동열(D.Y.Yang),이상욱(S.W.Lee),윤정환(J.W.Yoon),이동우(D.W.Lee) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_2
In this work, three kinds of analysis methods; i.e., elastoplastic shell/implicit method, elastoplastic shell/explicit method and rigid-plastic continuum/implicit method, are compared and discussed for analyzing a rectangular 'cup deep drawing with beads under the same computational circumstances. They are also compared with the experimental results to clarify the differences of formulation. From the comparisons, their merits and demerits have been discussed.
-
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
