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CNC 5축 공작기계의 동응답 저감 해석Analysis of the Reduction of the Dynamic Response for the CNC 5 Axles Machining Center
- Other Titles
- Analysis of the Reduction of the Dynamic Response for the CNC 5 Axles Machining Center
- Issue Date
- 2010
- Publisher
- 한국기계가공학회
- Keywords
- Dynamic response(동응답); Dynamic absorber(동흡진기); Natural frequencies(고유주파수); Dynamic response(동응답); Dynamic absorber(동흡진기); Natural frequencies(고유주파수)
- Citation
- 한국기계가공학회지, v.9, no.5, pp 83 - 89
- Pages
- 7
- Journal Title
- 한국기계가공학회지
- Volume
- 9
- Number
- 5
- Start Page
- 83
- End Page
- 89
- ISSN
- 1598-6721
2288-0771
- Abstract
- In this paper, the dynamic response of a CNC 5 Axles machining center was analyzed and then controlled passively by using the dynamic absorber. For the simplification of the theoretical approach, the CNC 5 Axles machining center was modeled as a flexible beam(Bed) having a point mass(Column), two discrete systems(a Table-set and a dynamic absorber). Specifically by using the dynamic absorber, the dynamic response of a Table-set which be caused by the vibration of a flexible beam, was reduced down to the infinitesimal level. The optimal design factors of the dynamic absorber were obtained from the minimization of the cost function. It was found that the natural frequencies of a UT-380 machining center be varied due to the movement of the Table-set. In view of the dynamic response of a Table-set, the larger spring stiffness and mass of the dynamic absorber were found to give the greater reduction.
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