http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
기어치형과 내부캠부를 가지는 자동차 기어의 유한요소해석
강경주(GyungJu Kang),윤주철(JooCheol Yun),강범수(BeomSoo Kang) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Finite Element Analysis is widely used in analyzing the precision forging of gears. In the case of gear tooth analysis, one tooth of the repeat is needed to be analyzed. However there are many kinds of automobile gear like barrel gear which have two repeated, gear tooth and CAM. It is necessary to analyze both the parts. In this paper 3D gear analysis is suggested using minimum repetition. In the first analysis, gear tooth is modeled with approximating CAM part to circle having same volume of CAM part. In the second analysis, CAM is modeled with approximated circle of tooth part. FE Analysis result is compared with experimental results. This study reveals that 3D gear analysis can be analyzed by separating two-part analysis.
유한요소법을 이용한 자동차 스타트모터용 바렐기어의 냉간 단조공정 설계
윤주철(JooCheol Yoon),강경주(GyungJu Kang),강범수(BeomSoo Kang) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study, we have designed the optimal cold forging process of the barrel gear used for the automobile start motor. In industry, the design of forging processes is performed based on experience-oriented technology, which is including designer's estimation and expensive trial and error. Using the rigid-plastic finite element simulation, we<br/> have obtained many useful information; forging load, strain distribution, deformed shape, defect and exact volume of the material, etc., and used these information to design the optimal forging process condition. The barrel gear is forged on the proposed process and investigated by checking the deformed shape and the material flow on a center section of the barrel gear.
김정(Jeong Kim),강성종(Sungjong Kang),강범수(Beomsoo Kang) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.5_2
The most common failure in tube hydroforming is the bursting failure due to excessive thinning of large deformation. So, the prediction of the bursting failure is so helpful to process design in hydroforming. By using the rigid-plastic finite element method, the Oyane's ductile fracture integral / was calculated from the histories of stress and strain according to every element and then the forming limit of the hydroforming process could be evaluated. The region of fracture initiation and the forming limit for three typical hydroforming processes, a tee extrusion, an automotive rear axle housing and lower arm under different forming conditions are predicted in this study. The prediction of the bursting failure and the plastic deformation during the three hydroforming processes shows to be reasonable so that this approach can be extended to other various tube hydroforming processes.<br/>