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김대유(Daeyu Kim),이건희(Geonhee Lee),허장욱(Jangwook Hur) 한국기계가공학회 2018 한국기계가공학회지 Vol.17 No.5
Recently in weapon systems development, the importance of reliability has been emphasized due to the increase in complexity and the rapid development of key components and components. Accordingly, the importance of lifespan testing is increased. However, lifespan testing to verify the reliability of a system is costly and takes a lot of time. Therefore in this paper, it was demonstrated that the most critical item of a bladder type accumulator is the bladder. Fatigue life is sensitive to temperature and pressure, with temperature having more impact. The fatigue life of the bladder was estimated to be 18,140 hr through fatigue analysis, which satisfies the required life expectancy of 10,000 hr.
김대유,김정태,Kim, Daeyu,Kim, Jung Tae 한국정보통신학회 2013 한국정보통신학회논문지 Vol.17 No.2
개인정보란 살아있는 개인에 관한 정보로 성명, 주민등록번호 및 영상을 통하여 개인이 알아볼 수 있는 정보를 말한다. 기존의 방법인 하드웨어 필터를 이용한 하드웨어 형태가 아닌 웹 분산형 방식으로 웹 브라우저와 웹 서버 간의 상호 동작 방식으로 개인정보를 점검할 수 있는 방법을 제안하였다. 사용자 단에서 게시판에 작성된 글은 웹 브라우저내의 자바스크립트로 첨부된 문서를 웹 서비스단에서 문서처리기로 개인정보의 누출을 해결할 수 있는 방법을 제안하였다. Personal information is defined information related to users' privacy data. It can be verified information through social security number, image, and means relating to individual can verify. Such personal information is in accordance with the privacy act in law for the collection and usage in enterprises and institutions. However, it can be induced privacy problem when it is exposed information without attention. This user's inadvertent disclosure of personal information has occurred due to social engineering and intelligent cyber-crime occurred in order to solve these problems. A variety of protection solutions for personal information have been developed. Web privacy filtering firewall and solutions related with server have been developed among developed many solutions, web privacy filtering and firewall solutions is proposed in this paper.
가상주행시험장(SVPG) 개발: Ⅰ. 가상주행시험장의 시스템 구성 및 운영
서명원(Myungwon Suh),구태윤(Taeyun Koo),권성진(Seongiin Kwon),신영수(Youngsu Shin),조기용(Kiyong Cho),박대유(Daeyu Park) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.5_2
By using modeling and simulation, today's design engineers are simultaneously reducing time to market and decreasing the cost of development, while increasing the quality and reliability of their products. A driving simulator is the best example of this method and allows virtual designs of control systems, electronic systems, mechanical systems and hydraulic systems of a vehicle to be evaluated before costly prototyping.<br/> The objective of this paper is to develop the virtual proving ground using a driving simulator and to show its capabilities of an automotive system development tool. For this purpose, including a real-time vehicle dynamics analysis system, the PC-based driving simulator and the virtual proving ground are developed by using VR(Virtual Reality) techniques. Also ABS HIL(Hardware-In-the-Loop) simulation is performed successfully.<br/>