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원광민,정광석 忠州大學校 2010 한국교통대학교 논문집 Vol.45 No.-
When the magnet array repeated spirally in the circumferential direction rotates around the conductive rod, it brings out the spiral motion on the rod. The generated forces are influenced by pole number, level difference and overlapped area between neighboring magnets, and rotating speed etc. In this paper, the forces are analyzed quantitatively through commercial tool, Maxwell.
원광민,정광석 忠州大學校 2011 한국교통대학교 논문집 Vol.46 No.-
Magnet wheel which has a high force density is used to convey a copper rod without contact. As the magnet wheel consists of permanent magnet array repeated periodically, the generated force magnitude and force characteristic are influenced by specifications such as pole number of permanent magnets, rotating speed of the magnet wheel, rod position, etc. In this paper, we analyze the influence of main parameters on the magnetic force through the magnet wheel.
원광민(Kwang Min Won),정광석(Kwang Suk Jung) 한국생산제조학회 2010 한국공작기계학회 추계학술대회논문집 Vol.2010 No.-
Varying the relative position and posture between neighboring PMs constituting magnet wheel around a conductive rod, we can obtain a spiral motion of the rod by only the rotation of the magnet wheel. It gives a chance to convey the rod without mechanical contact. In this paper, the developed conveyance system is given, including the quantitative analysis of a few parameters influencing the force characteristics.
신석영(Seokyoung shin),원광민(Kwangmin Won),이승엽(Sungyop Lee),김진현(Jinhyun Kim),진용욱(Yong Wook Jin),김성열(Sungyeol Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
4WD Driveline is quite a bit complex system. It has more parts than 2WD driveline. Therefore it is necessary to consider the whole system to make good performance. In this paper we studied 4WD driveline booming and transfer rattle noise among many 4WD problems. 4WD booming and transfer rattle noise take place when 4WD driveline is not properly designed. There are driveline natural modes in 4WD driveline system. When the system is not properly designed, one of the modes is the reason of Booming and transfer rattle noise. We showed the mechanism of 4WD booming and transfer rattle noise in test and simulation. Through test & simulation, we examine solutions like DMF, transfer gear ratio and 4WD coupling tuning..