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전자빔용접 AL5083-H113재의 불안정 피로균열 진전속도 예측에 관한 연구
옹장우,오재협 충남대학교 공업교육연구소 1989 論文集 Vol.12 No.1
Fatigue crack growth rate of electron beam weldments of AL5083-H113 are compared with basemetal under high cycle-load control test condition. The Kaiser's expression for the crack growth rate's prediction is modified to predict the instabe fatigu crack growth rate. The modified Kaiser's expression is evaluated under low cycle-load control test conditions and the effect of load condition is studied.
圓孤齒形 齒車의 물림機構가 Pumping에 미치는 影響
邕章祐 충남대학교 공업기술개발연구소 1975 工業技術開發硏究所論文集 Vol.2 No.2
This study was theorized about the gearing mechanism of pump gears which have circular arc tooth profile. The results obtained are as follows. 1. In all of gearing positions, the minimum clearance of backlash was stood on the tooth trace. 2. When gears were in motion, the position of maximum cleanae of back-lash was positioned periodically on 1/4 or 2/1 of diametral pitch. 3. In the case of about 0.02mm allowable tolerance on gear tooth profile, the leakage of gearing could be prevented by the effectual selection of R and r. 4. Extreme wear position was located on the line of pitch surface. 5. It was unfit tooth profile for the height speed pump.
回轉 Separator Ring 갖인 Rotary Pump에 關한 考察
邕章祐 충남대학교 공업기술개발연구소 1976 工業技術開發硏究所論文集 Vol.3 No.2
In eccentric rotary pump there are many complicated mechanisms because the length of separator is changed periodically in eccentric center. These studies were the performances upon the idea of the rotary pump with a rotating separator ring. The results were as follows: 1. The length of separator is constant. 2. Discharge is constant on outline. 3. Outside and inside pump chamber ratio is determined by the rotor diameter. 4. Driving-shaft must be rotor-shaft. 5. The mechanisms are, comparatively simple.
邕章祐,李永臣 충남대학교 1977 工業技術開發硏究所論文集 Vol.4 No.1
The thin circular plates are widely used as the parts of machines and instruments. Problems of torsion of a circular plate are not widely studied. The modern use of circular plates as the machineparts has made the static and dynamic stability of a circular plate a problem of great importance. In this study, relation between torsional critical stress S and ratio of radii from 1.5 to 4 was found by experiment. In this range, the results give valuable data for the practical coupling design. This results are good agreement with Dean's theoretical value.
邕章祐,柳盛淵,姜理錫 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(A)
Instructional materials were developed for effective teaching of materials testing and to promote the maximum use of the newly acquired experimental equipments. We have developed experimental manual and slide films. These materials comprise of tension test, compression test, bending test, hardness test, impact test, fatigue test, wear test and magnetic particle inspection. This study will contribute to teaching and laboratory practice of materials testing.
機械設計工學敎育科 敎科課程改善에 관한 硏究 : 機械製圖를 中心으로 With emphasis on the curriculum of the mechanical drawing
邕章祐,李永臣,梁均懿,柳盛淵 충남대학교 공업교육연구소 1981 論文集 Vol.4 No.1
This investigation aims at identifying some problems encountered with the mechanical drawing education in the Department of Mechanical Design Engineering of the College of Ind. Educ, and suggesting solutions to the problems associated. The study is based on the analysis of the mechanical drawing program and text materials currently applied to the department. The following recommendations are made; 1) Drawing theory and basic related theory should be more emphasized than before. 2) A systematic approach is recommended in the curriculum process. a) Teaching program should be revised taking into account the student level. b) Training level and subject should be adjusted. c) Job sheets and text-books for drawing exercise should be developed. d) Effective evaluation method should be established. e) The audio-visual media, e.g, OHP and section model should be actively utilized. f) Teaching assistants are required in drawing classes. 3) It takes at least 400 hours to educate the mechanical drawing satisfactorily.