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고속 시험선 구간에서의 G7 본선 시운전에 대비한 G7 팬터그래프와 KTX 가선계와의 인터페이스 연구
조용현(Yong Hyeon Cho),경진호(Jinho Kyung),허신(Shin Hur),최강윤(Kangyoun Choe),김기환(Ki-Hwan Kim) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
It is necessary to perform a study on the interface between a G7 pantograph and a KTX catenary system prior to G7 on-line tests in the Korea High Speed Test Track in order to predict how high current collection quality can be obtained during the on-line tests and check if safety problems shall be caused by the tests or not. According to the simulation results, current collection quality of the G7 pantograph at 350 ㎞/h is lower than that of a GPU pantograph at 300 ㎞/h, but the contact wire uplifts and average contact forces are within the safe-zone. In addition, the ratio of running speed(350 ㎞/h) to wave propagation speed is low enough for safe running. Therefore, the G7 on-line tests at 350 ㎞/h in the Korea High Speed Test Track is expected not to cause the safety problem.
최태용(Taeyong Choi),경진호(Jinho Kyung),도현민(Hyunmin Do),박찬훈(Chanhun Park),박동일(Dongil Park) 제어로봇시스템학회 2016 제어·로봇·시스템학회 논문지 Vol.22 No.12
There is an increasing need for manufacturing systems to produce batches in small quantities. Such manufacturing systems are significantly difficult to develop with conventional automation equipment. Recently, several research groups have applied industrial dual-arm robots to cell production lines. A synchronization method for robots is necessary for the cell production process when robots work in a shared workspace. Conventional automation factories do not need this method because the main control system operates all of the machines or robots. However, our intended application for the developed robot is in small manufacturing environments that cannot install an expensive main control system. We propose an inexpensive and high-performance method with a simple digital in/out channel using a real-time communication protocol. The developed method was validated in a pilot production line for cellular phone packing.
조성락(Sungrak Cho),경진호(Jinho Kyung),노승국(Seungkook Ro),박종권(Jongkweon Park),노명규(Myounggyu Noh) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
A micro magnetic bearing system with five degrees of freedom active control has been designed for a miniature spindle to be used in a μ-factory. A shaft of the micro spindle is suspended by five set of hybrid magnetic bearings at each side of the shaft. Permanent magnets produce bias magnetic flux for the magnetic bearings and an electric motor(Φ 24,70W) is set between the magnetic bearings. Five eddy current sensors are used to measure the shaft position. An analytical model of the system is developed for the design purpose. This model is verified through 3-D finite element analysis. A prototype spindle is designed and currently under construction.
임무에 따른 하박 교체형 고 가반하중 양팔로봇의 설계: 구난 및 물체 핸들링
김휘수,박동일,최태용,도현민,김두형,경진호,박찬훈,Kim, Hwisu,Park, Dongil,Choi, Taeyong,Do, Hyunmin,Kim, Doohyeong,Kyung, Jinho,Park, Chanhun 한국로봇학회 2017 로봇학회 논문지 Vol.12 No.4
Robot arms are being increasingly used in various fields with special attention given to unmanned systems. In this research, we developed a high payload dual-arm robot, in which the forearm module is replaceable to meet the assigned task, such as object handling or lifting humans in a rescue operation. With each forearm module specialized for an assigned task (e.g. safety for rescue and redundant joints for object handling task), the robot can conduct various tasks more effectively than could be done previously. In this paper, the design of the high payload dual-arm robot with replaceable forearm function is described in detail. Two forearms are developed here. Each of forearm has quite a different goal. One of the forearms is specialized for human rescue in human familiar flat aspect and compliance parts. Other is for general heavy objects, more than 30 kg, handling with high degree of freedom more than 7.
조성락,경진호,노승국,박종권 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-
One of the obstacles for a magnetic bearing to be used in the wide range of industrial applications is the failure modes associated with magnetic bearings. These failure modes include power amplifier faults, position sensor faults, and the malfunction of controllers. Fault-tolerant magnetic bearing systems have been proposed so that the system can operate in spite of some faults. In this paper, we designed and tested a fault-tolerant magnetic bearing system. The system can cope with the actuator faults as well as the faults in position sensors, which are the two major fault modes in a magnetic bearing system.