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오늘 본 자료
권중록(J.L. Kwon),김근웅(K.W. Kim),이정일(J.I. Lee),김완기(W.G. Kim),이종인(J.I. Lee) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
As a main tractive system of the high speed train, a traction motor is highly required stabilization and reliability for passenger safety and needed a design of lighter weight with compact size for high speed operation. The design technology of the traction motor was developed through the G7 project and verified it by performing strength analysis of rotor and frame which are the main parts of the mechanical design and confirmed by evaluating heat stabilization of the forced ventilation cooling method. The high speed train driven by the developed traction motor could successfully run at the target speed. 350 ㎞/h in the Test Driving on December, 2004, and it is running today for its commercialization in the near future.
조성훈(S.-H. Cho),이종철(J.-C. Lee),최명준(M.-J. Choi),권중록(J.-R. Kwon),김윤제(Y.-J. Kim) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
A Study on the Characteristics of Vacuum Arcs Influenced by a Lorentz Force The experiments applied high-current for the improvement of the interruption capacity within the vacuum interrupter require enormous expenses and excessive time. In this study, the characteristics of vacuum arcs influenced by a Lorentz force were calculated by a commercial multiphysics package, ANSYS. We assumed the diffused-mode arc within an AMF vacuum interrupter. It was found that the Lorentz force generated by a current path caused an arc constriction and increased the axial temperature between the electrodes. Also, we analyzed the constriction of the anode surface and asymmetric temperature distribution.