2017
DOI: 10.1177/0954406217711728
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Dynamic optimization method with applications for machine tools based on approximation model

Abstract: Natural frequencies and modal shapes of machine tools have position-dependent characteristics owing to their dynamic behaviors changing with the positions of moving parts. It is time-consuming and difficult to evaluate the dynamic behaviors of machine tools and their machining accuracy at different positions. In this paper, a Kriging approximation model coupled with finite element method is proposed to substitute the dynamic equations for obtaining the position-dependent natural frequencies of a machine tool, … Show more

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Cited by 6 publications
(3 citation statements)
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“…Modal analysis is to analyze the natural frequency and vibration pattern of the bed with the main purpose of directing the design to avoid resonance when the bed is loaded. It plays an important role in eliminating noise and vibration [23][24]. In general, the modal analysis usually will involve no loading and both the resin and the cast iron beds would be fixed in our study.…”
Section: Modal Analysis Of the Bed Structurementioning
confidence: 99%
“…Modal analysis is to analyze the natural frequency and vibration pattern of the bed with the main purpose of directing the design to avoid resonance when the bed is loaded. It plays an important role in eliminating noise and vibration [23][24]. In general, the modal analysis usually will involve no loading and both the resin and the cast iron beds would be fixed in our study.…”
Section: Modal Analysis Of the Bed Structurementioning
confidence: 99%
“…The theoretical basis of modal analysis is based on the classical mechanical theory [24]. The general equation of physical kinematics of mechanical structures is as follows.…”
Section: Theoretical Basis Of Modal Analysismentioning
confidence: 99%
“…From discrepancy of the classical models, the commonly-produced lamellar chips in ultra-precision machining, 10–12 widely applied into many advanced manufacturing fields with sub-micrometric form accuracy and nanometric surface roughness 1316 indicate that the shear angle changes along with chip formation but not keep constant, i.e. cyclic shear angle.…”
Section: Introductionmentioning
confidence: 99%