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뿌리기술 공용화를 위한 생산기반 지식 공유형 플랫폼 시스템 개발에 관한 연구
손종인(J. I. Sohn),윤길상(G. S. Yoon),박정진(J. J. Park),허영무(Y. M. Heo) 한국소성가공학회 2012 한국소성가공학회 학술대회 논문집 Vol.2012 No.5
The root technology which means production-based technology, Welding, molds, Plastic working, Surface treatment, Heat treatment, Casting is required for public service by platform system. Platform system is made up web portal system and register knowledge system and the database which is built by register knowledge system is serviced through web portal. The platform system is primarily intended for enterprises that are operating and easier for companies to develop the skills to be performed may be helpful. Unilaterally from information providers to the technical information that is provided along with the ability to efficiently implement improvements, and further improved by establishing a broader information system platform can be expected.
SI 엔진에서 텀블강도 및 흡기계 압려파가 성능에 미치는 영향
이동준(D.J.Lee),박정진(J.J.park),장한수(H.S.Chang) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_1
Recently, tumble in intake port and dynamic-pressure-wave effect of intake flow are used to promote the performance of SI engine. But not yet is acceptable consensus obtained about the relation between above factors and the performance of SI engine. In this paper, combustion analysis was done upon three cylinder heads which possessed different tumble values to observe the effect of tumble upon the performance, and it was concluded that there are an optimal tumble value for a given condition in the combustion system. Pressure waves of intake runner were also surveyed to consider their effects upon the performance and these pressure shapes could explain the trend of volumetric efficiency curve.<br/>