2012
DOI: 10.4028/www.scientific.net/amr.619.47
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Spindle Static and Dynamic Characteristics Analysis of Precision CNC Turning Center

Abstract: In this paper, a research of precision CNC turning center’s spindle is presented. Spring damper elements are used to simulate the supports of dynamic and static hydraulic bearing, and the 3D finite element models of the spindle is built. Based on finite element models of spindle, the static analysis and model analysis are performed, and the static stiffness, natural frequency and modes of vibration are put forward. The strain and stress of spindle is explored, and mode of vibration of spindle under resonance a… Show more

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Cited by 2 publications
(2 citation statements)
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“…The maximum speed of the grinding shaft is 8000 rpm, so there is a need to avoid the range of the first two modes, but the required range of working speed is between 6000 rpm to 8000 rpm against the frequency range of 100 Hz to 135 Hz, which is in the 3rd mode. C. Guo et al [6] states that the maximum rotational speed of the tool cannot surpass 75 % of the critical speed. Moreover, from the modal analysis, it is substantiated that the critical speed for that mode is 23226.6 rpm, which is well beyond the operating speed range.…”
Section: Modal Analysismentioning
confidence: 99%
See 1 more Smart Citation
“…The maximum speed of the grinding shaft is 8000 rpm, so there is a need to avoid the range of the first two modes, but the required range of working speed is between 6000 rpm to 8000 rpm against the frequency range of 100 Hz to 135 Hz, which is in the 3rd mode. C. Guo et al [6] states that the maximum rotational speed of the tool cannot surpass 75 % of the critical speed. Moreover, from the modal analysis, it is substantiated that the critical speed for that mode is 23226.6 rpm, which is well beyond the operating speed range.…”
Section: Modal Analysismentioning
confidence: 99%
“…A. Anand and H. Roy [5] have computed the static stiffness and performed dynamic analysis on the optimized design of the spindle. C. Guo et al [6] have provided the study of static and modal analyses to measure the characteristics; static stiffness, natural frequency, and their shape modes and acquired the resonance-free structure of spindle. J. Feng et al [7] have performed the optimization of the came shaft grinding machine spindle structure.…”
Section: Introductionmentioning
confidence: 99%