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STICK TYPE IGNITION COIL 용 자켓의 억지끼워맞춤시 접촉응력
김남수(Namsu Kim),송호준(Hojun Song),김양술(Yangsul Kim) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
Stick Type Ignition Coil(Called a Cigar Coil) is a kind of transformer for an automobile modularized of distributor<br/> and electric cable. A material of Cigar Coil is PBT GF30% resin. This is an excellent engineering plastic with both<br/> mechanical and electrical properties. When we insert an HV terminal into the PBT GF30% resin jacket, it breaks the<br/> jacket, because the HV terminal is bigger than the jacket. It’s a fatal on durability of a part. In the study, we used<br/> ANSYS FEM tool in order to stress analysis by contact. In order to automatically estimate passable maximum<br/> diameter of an HV terminal, we used an APDL. In the contact part, we considered the relation of the HV terminal’s<br/> diameter with the amount of stress that occurred. This relation is able to be applied, in part, to the dimensions of the<br/> part design.
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김남수(Namsu Kim),김용모(Yongmo Kim) 한국연소학회 2017 한국연소학회지 Vol.22 No.3
The multi-environment probability density function model has been applied to simulate a turbulent premixed flame in a swirl combustor. To realistically account for the unsteady flow motion inside the combustor, the formulations are derived for the large eddy simulation. The Flamelet generated manifolds is utilized to simplify a multi-dimensional composition space with reasonable accuracy. The sub grid scale mixing is modeled by the interaction by exchange with the mean mixing model. To validate the present approach, the simulation results are compared with experimental data in terms of mean velocity, temperature, and species mass fractions.
유소년의 스포츠참여 증진을 위한 스포츠개발모델 및 발달자산의 적용 : 유소년 배구를 중심으로
김남수(Kim, Namsu),박성희(Park, Seong-Hee) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.3
The purpose of this study was to explore and describe the ways for youth sport promotion by using theoretical frameworks which are both sport development model and developmental asset. The authors created a new comprehensive framework to integrate sport development model with developmental asset concepts. With the use of the framework we conducted an empirical study to develop policy directions to develop Korean youth volleyball. Through Yin"s qualitative research method, 12 experienced volleyball players were interviewed. Interview questions were about the individual and environmental factors influencing youth"s volleyball participation in the stage of introduction, continuation, and advancement. The results of the study are as follows. First, the initial stage of participation, it was important to manage volleyball program so that volleyball as sports could continue to be fun and interesting. Second, among the factors that have been continuously participating in volleyball since youth entered it, there ware internal motivation factors such as the joy of performing volleyball techniques correctly and the satisfaction of doing my favorite sports. Thirdly, as an opportunity to move from the youth level to the youth and adult level, the belief that volleyball can succeed was identified as a very important factor. Finally, we connected each different stage of youth volleyball system into the four developmental assets which are physical, intellectual, psychological and emotional, and social developmental assets in order to suggest the policy for the continued participation into vollebyall.