한국생산제조학회지 (Journal of the Korean Society of Manufacturing Technology Engineers)

  • 제19권5호
  • /
  • Pages.596-602
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  • 2010
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  • 2508-5093(pISSN)
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  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지

개루프제어로 이송되는 공작기계 구조물의 동적 거동을 위한 유한 요소 해석

Finite element analysis for dynamic behavior of a machine tool structure fed in open loop control

  • 투고 : 2010.08.10
  • 심사 : 2010.09.27
  • 발행 : 2010.10.15
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초록

In this study, a fmite element model was developed for analysis of feeding a structure in open loop control The finite element analysis (FEA) can simulate dynamic behavior of the structure of a machine tool rapidly traveling with a screw feeding driving system. The feeding mechanism was implemented with screw element of the FEA tool used in this study. The procedure was developed for the dynamic transient FEA. First, motion parameters such as jerk and velocity were introduced for the structure to be fed in open loop control When its traveling distance was determined, set-points for the distance were generated based on the motion parameters. The set-points were applied to the FE model constructed for the traveling structure. The FEA was executed and evaluated. In this study, the FEA procedure was applied to the column of a machine tool and the dynamic behavior of the column was evaluated. The FEA helps in evaluation of the motion characteristics of a structure. The convergence time of the structure vibration posterior to feeding termination can be estimated and the stiffness of the flexible structure is also evaluated against jerk, and acceleration. It provides the feeding force which is helpful in selection of the feeding motor.

키워드

참고문헌

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