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강성종(S. J. Kang) 한국자동차공학회 1998 한국 자동차공학회논문집 Vol.6 No.6
Optimum design of bumper beam is investigated using nonlinear CAE structural analysis techniques.<br/> In order to minimize its weight, while enhancing structural performances, bum-per beam structural analyses were carried out to produce optimum section. Model is composed of bum' per beam and stay. First, considering FMVSS safety standard, static strength and energy absorbing capability were estimated for several competitive bumpers through pendulum static analysis, and most promising section was chosen. Next, to ensure dynamic crashworthinesss, performance for center pole impact was evaluated for the bumper beam with chosen section through pendulum static analysis, referring to IIHS bumper dynamic impact standard. Finally, 2.5 mph bumper beam was designed and its structural performance was estimated.<br/> Through this investigation, an optimized bumper beam section with less weight of 20% while maintaining almost equal carshworthiness, compared with a conventional bumper beam section which proved its impact crashworthiness by experiments, was developed.<br/>
강성종(S. J. Kang) 한국자동차공학회 1997 한국 자동차공학회논문집 Vol.5 No.5
In this study, an analysis technique using simple beam model for predicting strucrture crashworthiness of the passenger car side impacted with an angle by another passenger car was in-vestigated. The simple model was composed of major beam-like side structure which carry almost all side impact load. A procedure of component collapse test, calculation of load carrying capability and dynamic simulation was carryed out sequentially. Transient dynamic algorithms and a comput-er program to simulate deformations and motions of the impacted car was developed. The devel-oped procedure was applied to a 3 door passenger car side impacted with an angle of 75 degree and the analysis results show good agreements with the actual test results.<br/>
소성 힌지를 갖는 단순 보 모델을 이용한 루프 붕괴 해석 기술
강성종(S. J. Kang) 한국자동차공학회 1996 한국 자동차공학회논문집 Vol.4 No.6
This paper presents a computational technique to predict roof crush resistance in early design stage of passenger car development. This technique use a simple F.E. model with nonlinear spring elements which represent plastic hinge behavior at weak areas. By assuming actual sections as equivalent simple sections, maximum bending moments which weak areas in major members can stand are theoretically calculated. Results from prediction of roof crush resistance are correlated well with test results.<br/>
윤성진(S.J.Yoon),강성종(S.J.Kang) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Closing performance of door slam relates to closing sound(vibration) and operating force. In order to evaluate door closing performance. weather strip characteristics are analytically obtained and a full trimmed door F.E model is built. Validity of that trimmed door model is shown through static and dynamic testing. Finally, shock vibration response of closing door frame is analyzed through modal transient response analysis and compared with test results. Also. major influencing factors such as weather strip characteristics and frame stiffness are discussed.<br/>
초전도 한류기용 YBCO 박막 전류 Path Pattern 개발
이방욱,강성종,박권배,오일성,Lee B. W.,Kang J. S.,Park K. B.,Oh I. S. 한국초전도학회 2005 Progress in superconductivity Vol.6 No.2
In this study, electromagnetic analysis of current paths including meander pattern, spiral pattern, and bi-spiral pattern were performed and in order to verity the analysis results, experiments tests including quench test, and insulation tests were performed. In addition, bubble corner concepts were introduced to enhance insulation reliability. From our study, bi-spiral pattern of YBCO thin films were rather effective for quench and insulation than the other patterns. So this current path pattern was adopted for YBCO thin films in order to develop 6.6 kV resistive fault current limiters. Finally YBCO thin films were connected in series and parallel to enhance capacity, and the test results of current limiting characteristics of 6.6kV resistive SFCL were successful. The Progress in Superconductivity is published every six month and serves as a channel for publications on superconductivity and related topics. The author(s) are required to submit THREE copies of the manuscripts along with original figures directly to the Editor.
조장형(J.H.CHO),강성종(S.J.Kang) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1994 No.11_1
A numerical analysis study for three dimentional under hood air flow was carried out in order to predict distribution of air flow, air temperature on engine compartment parts and air flow rate through radiator that has influence on engine cooling.<br/> The change of air flow rate through radiator with varying the front end shape was predicted. Applying this method from the initial stage of front end design may contributes to acquire optimal front end snape and under hood design for cooling performance.<br/>