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차상민,배희은,최진호,최영휴 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-
During high-speed running of machine tools, serious vibrations often may occur in their feed-drive system. In this paper, a 4-D.O.F. planar motion model is proposed in order to analyze a ball screw feed-drive system. The equations of motion are derived for the proposed model and natural frequencies of the system are calculated. Also its transient response due to driving motor speed control input are calculated. The theoretical analysis results showed good agreement with experimental ones measured from a laboratory feed-drive test system. Consequently we concluded that the proposed 4-D.O.F model can be well applicable to the vibration analysis and dynamic design of machine tool feed-drive system.