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동문선(東文選)의 루정기(樓亭記)에서 본 고려(高麗) 중(中).후기(後期)의 루정건축고(樓亭建築考)
이용범,천득염,임영배,Lee, Yong-Bum,Cheon, Deuk-Youm,Lim, Young-Bai 한국건축역사학회 1993 건축역사연구 Vol.2 No.2
The Purpose of this study is to look for the total conspectus of Roo-Jong(RJ) Architecture in the middle and latter era of Koryo Dynasty. The method of this study is the review of old literature, the Roo-Jung description of Dong-Mun-Sun, which had compiled in the Ninth year of Seung-Jong (AD 1478) by confucian scholar. The conclusions of this study can be summarized as follows : 1) The main currents of thought having a great influence on the RJ are thought of Mountain God (or Sin Sun, which is dwelling in mountain) or Taoist, thought of Lao-tzu and Chuang-tzu. They had required the RJ Architecture to pursuit the life of God. In this existence value meaning, the RJ Architecturethe is the semi-sacred & profane space. In the being aspect, RJ is the transcendental architecture. 2) The way of life of in the RJ had strongly turned from the personal space, mainly mind control place, into the friendship-society space, pastime place. 3) The RJ had located after the images that is what should be. The images were formed on the ground of natural landscape elements, communication elements. And these elements were indicated on one's visual, auditorial sensation with oneself. 4) In planning aspect, the scope of visual, Pungsu and history were aided with the factors of climate, topography and geography. Specially in location and fabric planning, they had regarded more important the objects and scope of visual than the climate factor.
이용범 ( Yong Bum Lee ) 한국센서학회 1996 센서학회지 Vol.5 No.5
This paper describes development of Polarized Stereo Monitoring System (KAERI-PSM) and compares the remote handling performance of KAERI-PSM with that of other monitoring systems, electric shutter type stereo monitoring system and general TV monitoring system. Remote handling performance is evaluated by total time and error number on remote operating experiments. Four kinds of remote handling experiments are carried out through 1) directly 2) general TV 3) electric shutter type monitor, and 4) KAERI-PSM. In these experiments six employees are participated and PUMA robot with force-torque reflectional joystic is used. The result of experiments show that camera angle against object is significant factor in monitoring and stereo monitoring system give more performance benifits in terms of accuracy and speed of remote handling operation than general TV monitoring system. In comparision of the polarized and electric shutter type stereo monitoring system, both have similar accuracy and speed for remote handling operation, but the former is superior in image quality and stability of the performance.
이용범(Yong Bum Lee),김광민(Kwang Min Kim) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.6
굴삭기를 전진과 후진시키는 주행모터에는 주차브레이크(parking brake)가 내장되어있다. 이 주차브레이크는 굴삭기가 주차되었을 때 고정뿐만 아니라 전진 및 후진을 하지 않는 상태로 굴삭작업 할 때에도 차체를 지연에 고정시킨다. 정확한 굴삭작업을 위해서는 작업충격이나 자중을 포함한 굴삭부하가 발생했을 때 차체를 지면에 견고하게 고정해주는 브레이크 기능이 굴삭기가 주차되었을 때의 고정보다 더 중요하고 작용횟수 또한 훨씬 높다. 본 연구에서는 다중 마찰 판(multi friction disc)을 스프링 힘으로 작동(결합)시키고 유압실린더로 해제시키는 굴삭기주행모터의 주차브레이크에 대해서 작용 압력별로 반복실험을 실시하여 측정된 데이터를 설계 이론값과 비교하여 주차브레이크의 특성을 분석하였다. A parking brake is one of the essential units embedded in track driving motor of an excavator. The parking brake plays an important role to put in place of the excavator not only at parking, but also for digging operation. In fact, the load subjected on the parking brake for the digging operation is significantly higher than that for the parking load, because the impact and rating load caused by a bucket digging force take place even frequently and their load ranges are very high. Therefore, the load condition of the digging operation should be taken into account for the certification test of the parking brake. In this study, experimental series were carried out for each operating pressure of the parking brake, where repeated loads are subjected reciprocally by locking the multi-friction disc and releasing the hydraulic cylinder. The characteristics of the parking brake were investigated by the comparison of the obtained experimental results and the theoretical design specification.
이용범(Yong Bum Lee),김광민(Kwang Min Kim) 대한기계학회 2011 大韓機械學會論文集B Vol.35 No.11
굴삭기를 전진과 후진시키는 주행모터에는 주차브레이크(parking brake)가 내장되어있다. 이 주차브레이크는 굴삭기가 주차되었을 때 고정뿐만 아니라 전진 및 후진을 하지 않는 상태로 굴삭작업 할 때에도 차체를 지면에 고정시킨다. 정확한 굴삭작업을 위해서는 작업충격이나 자중을 포함한 굴삭부하가 발생했을 때 차체를 지면에 견고하게 고정해주는 브레이크 기능이 굴삭기가 주차되었을 때의 고정보다 더 중요하고 작용횟수 또한 훨씬 높다. 본 연구에서는 다중 마찰 판(multi friction disc)을 스프링 힘으로 작동(결합)시키고 유압실린더로 해제시키는 굴삭기 주행모터의 주차브레이크에 대해서 작용 압력별로 반복실험을 실시하여 측정된 데이터를 설계 이론값과 비교하여 주차브레이크의 특성을 분석하였다. The parking brake is an essential unit embedded in the track-driving motor of an excavator. The parking brake plays an important role in keeping the excavator in place not only when it is parked, but also during the digging operation. In fact, the load placed on the parking brake during the digging operation is significantly higher than the parking load, because the impact and rating loads caused by the bucket digging force cycle frequently and have very high load ranges. Therefore, the load conditions during the digging operation should be taken into account in the parking brake certification test. In this study, a series of experiments was carried out in which various operating pressures were applied to the parking brake, where repeated loads were reciprocally placed on the brake by locking the multifriction disc and releasing the hydraulic cylinder. The characteristics of the parking brake were investigated by comparing the obtained experimental results and the theoretical design specifications.