• 과학과기술
• /
• 통권475호
• /
• pp.64-67
• /
• 2008

• STIMA Bulletin
• /
• 통권6호
• /
• pp.23-25
• /
• 2007

현정 박계홍 선생은 우리나라 과학기술 도서관계 대부로 불린다. 황무지였던 도서관 정보서비스 분야에서 외로운 선구자의 역할을 통해 오늘날 STIMA의 토대를 만들어 주신 분이다

• 환경기술인
• /
• 제24권통권247호
• /
• pp.62-63
• /
• 2007

• 환경기술인
• /
• 제24권통권246호
• /
• pp.62-63
• /
• 2007

• 건축사
• /
• 9호통권401호
• /
• pp.70-85
• /
• 2002

• 양봉협회회보
• /
• 통권344호
• /
• pp.39-39
• /
• 2009

• 환경기술인
• /
• 제24권통권245호
• /
• pp.62-63
• /
• 2007

• 환경기술인
• /
• 제24권통권248호
• /
• pp.62-63
• /
• 2007

• 건축사
• /
• 1호통권95호
• /
• pp.15-34
• /
• 1977

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 1995년도 추계학술대회 논문집
• /
• pp.614-617
• /
• 1995

The unbalance heavy-load elevation driving systems are composed of rotating link-mechanism and hydraulic cylinder which actuates elevation and compensates the static unbalance moment of supporting mechanism. Control and compensation of gun driving is very difficult because these mechanism imply highly nonlinearities due to hydraulic fluid characteristics and mechanical rotation of link-mechanism. In this study, through the analysis of manufactured link-mechanism, the optimal link-mechanism design of the elevating system is suggested. Also to estimate the control performance of the unbalance heavy-load elevation servo-control driving system, modeling and simulation of the system are carried out. To prove the reliability of performance estimation program,simulation results are compared with the experimental results. Both results are similar, therefore this program will be helpful to study the control performance improvement of the system.