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조진우,강도경,강이석,Cho, Jin-Woo,Kang, Do-Kyung,Kang, E-Sok 한국군사과학기술학회 2015 한국군사과학기술학회지 Vol.18 No.2
Vehicles and UGV(Unmanned Ground Vehicle) need a variety of road informations, such as road profile, soil type and soil water contents, to run a cross country course. Especially, soil water contents are very important factor to judge the vehicle mobility, because it can change soil strength. This paper describes the real-time measuring method of soil water contents by using the soil thermal conductivity.
강도경,남궁석 忠南大學校 産業技術硏究所 1990 산업기술연구논문집 Vol.5 No.1
This paper deals with in-process recognition of chip formation in trurning. According to the demand of high-efficiency in cutting process, the importance of chip problem has been raised, and so it is important of cutting force, and the in-process detection of the chip formation is one of the most important technologies in completely automatic operation of cutting process. As a result, the following conclusion can be drown. 1. In turning, the dynamic component of cutting force through the band pass filter(80-500HZ) reflects the broken condition of chip accurately, and its wavy pattern has periodicity. 2. The dynamic component of cutting force in broken type is bigger than that of continuous type. 3. After judging from whether the chip in real on-line condition had been broken or not, with the threshold obtained from the experiment. The on-line system was well recognizing the continuous type and broken type.