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A flexible mechanism based vibration isolator for machine tool application
Last modified: 10. 05. 2023
Abstract
The paper presents novel design of vibration absorber with innovative featuresincluding use of flexible link based mechanism at the interface of tool holder and
cutting tool. The mechanism ensures modification of the dynamic force interac-tion at the damping element and results in lower force transmissibility. It ensures
amplification of the relative velocity at the damping element, which results insignificant reduction of the damping element mass used for energy dissipation.The presented absorber has advantages of passive and economical operation in
comparison to the active and semi-active solutions. Further, the proposed solu-tion results in up to 53% reduction in the force transmissibility. A real size design
has been presented for frequency range of 0-1100 Hz and maximum force am-plitude of 700 N. Numerical simulations have been performed with consideration
of flexible joint and structural element dynamics. Simulation results with FEAand PRBM approach have been compared with detailed analysis of the importantdesign parameters.
cutting tool. The mechanism ensures modification of the dynamic force interac-tion at the damping element and results in lower force transmissibility. It ensures
amplification of the relative velocity at the damping element, which results insignificant reduction of the damping element mass used for energy dissipation.The presented absorber has advantages of passive and economical operation in
comparison to the active and semi-active solutions. Further, the proposed solu-tion results in up to 53% reduction in the force transmissibility. A real size design
has been presented for frequency range of 0-1100 Hz and maximum force am-plitude of 700 N. Numerical simulations have been performed with consideration
of flexible joint and structural element dynamics. Simulation results with FEAand PRBM approach have been compared with detailed analysis of the importantdesign parameters.