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4WS 시스템의 페일이 차량 거동에 미치는 영향과 페일 세이프 방법에 관한 연구
정연구(Youn-Koo Jeong),김동룡(Dong-Ryong Kim),김대영(Dae- Young Kim) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_1
It is well-known that 4WS system is one of the effective mechanisms for impoving stability and controllability of a vehicle. Since steering characteristic affects greatly on vehicle behavior, the reliability of 4WS system is very important. This study shows the influence of fails of 4WS system on vehicle behavior and the fail-safe counterplan when fail occurs during cornering.<br/>
다중 위상차를 갖는 조합형 캠을 이용한 다족형 이동 메커니즘
김경대,정연구,김병규,박종오,Kim, Kyung-Dae,Jeong, Youn-Koo,Kim, Byung-Kyu,Park, Jong-Oh 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.12
Robots that can move along the narrow and rough tube are very important as the request for the inspection increases. It is necessary for the inspection robots to have a capability to move successfully at even overturned situation and have a simple mechanism to reduce the unexpected failure possibility fer the successful completion of the given mission. Through this paper, the authors propose a novel and simple mechanism using a combination cam device to generate the locomotive motion of multi-legs. This robot uses one DC motor and one combination cam shaft to generate the locomotive motion and can move rough tubes without failure even at the overturned situation. The robot also shows enough fragging force fer the connected line that is very important for a wired inspection robot. Kinematics analysis to design the specification of the robot will be followed and several applications show this robot's potential capabilities.