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기어펌프를 이용한 선박용 유압 액츄에이터 설계에 관한 연구
고석조(Seok-Jo Go),박장식(Jang-Sik Park),최문호(Moon-Ho Choi),최성호(Seong-Ho Choi),장용석(Yong-Seok Jang),김창동(Chang-Dong Kim),김대경(Dae-Kyung Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
Valve remote control system(VRCS) is a convenient system which make it possible to operate the valves installed in the cargo or ballast tanks from the remote wheelhouse using only push buttons on the central control console. The actual positions of valves are normally displayed on a mimic panel. VRCS is consisted of many parts such as a control console, a interface panel, a hydraulic power pack, a solenoid valve rack, a deck box and valves with hydraulic actuators. Thus, this study designed a new hydraulic actuator using gear pump. Its main components are a gear pump, an AC motor, a check valve, a relief valve and a controller. Therefore, the developed VRCS has a simply structure such as a control console, a interface panel and valves with new hydraulic actuators.
고석조(Seok-Jo Go),김창동(Chang-Dong Kim),이병우(Byung-Woo Lee),장용석(Yong-Seok Jang) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
A Fresh water generator is designed to produce fresh water from sea water. This generator produces fresh water by evaporating and condensing sea water, and it uses the engine jacket water as the heat source. While a vessel is sailing, it uses main engine to produce fresh water and also, while a vessel is in port, it uses auxiliary engine. After all, sea water is evaporated the heat which the coolant contains, so it can produce fresh water economically, because it dose not need additional heat source. A salinity meter is a densitometer measuring the concentration of salt in sea water. This study designed the multi-function salinity meter(SAL-2000). SAL-2000 has many functions such as conductivity, salinity, flow rate, and so on.
24 GHz 안테나 모듈을 이용한 2차원 레이더 거리 측정 시스템 개발 및 성능 평가
고석조(Seok-Jo Go),김태훈(Tae-Hoon Kim),차병수(Byung-Soo Cha),박민규(Min-Kyu Park),문영근(Young-Gun Moon),유기호(Ki-Ho Yu) 한국산업융합학회 2016 한국산업융합학회 논문집 Vol.19 No.2
Laser distance measuring systems are used in many fields with high precision. However, when measuring the reflector such as the mirror and the black color, a laser distance measuring system does not guarantee the measurement accuracy. In order to measure the shape of the cargo, this study proposes the radar distance measurement system. The radar distance measuring system is composed of a distance measuring unit with a 24 GHz antenna module, a signal processing and control board and the 1-axis tilting unit. And, this study developed a monitoring program to monitor the measured data. In order to evaluate performance of the developed system, the distance measurement tests are carried out. The distance error was about 6-15 cm. However, considering the size of the cargo, the precision is not a problem. And, cargo shape was measured by using the distance information measured by the 1-axis tilting unit. It could get a 2 dimension shape profile for the cargo stacked in a yard.
고석조(Seok-Jo Go),이영진(Young-Jin Lee) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
Robotic manipulators are increasingly deployed in complex environments or to perform complex tasks. Redundancy is necessary to cope with the increasing complexity. Redundancy is defined whenever a robot possesses more input degrees of freedom than required by the task at hand. Studies on dual arm robots have been continually carried out in robotics areas to provide robots in dangerous environments, similar to those which human beings would be normally in, without a special change to the working environment. In this study, a control system for a dual arm robot has been designed to provide a real-time connection between the controller and the robot by using a MEl's ZMP-SynqNet-PCI board. The dual arm robot consists of two arms with six degrees of freedom and a body with three degrees of freedom.
고석조(Seok-Jo Go),박장식(Jang-Sik Park),장용석(Yong-Seok Jang),최문호(Moon-Ho Choi) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
This study developed the surveillance robot for a ship. The developed robot consists of ultrasonic sensors, an actuator, a lighting fixture and a camera. The ultrasonic sensors are used to avoid collision with obstacles in the environment. The actuator is a servo motor system. The developed robot has four drive wheels for driving. The lighting fixture is used to guide the robot in a dark environment. To transmit an image, camera with a pan moving and a tilt moving is equipped on the upper part of the robot. In order to evaluate the obstacle recognition of the developed robot, driving experiments were performed.