Abstract
The paper presents novel design of vibration absorber with innovative features including use of flexible link based mechanism at the interface of tool holder and cutting tool. The mechanism ensures modification of the dynamic force interaction at the damping element and results in lower force transmissibility. It ensures amplification of the relative velocity at the damping element, which results in significant 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 solution 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 amplitude of 700 N. Numerical simulations have been performed with consideration of flexible joint and structural element dynamics. Simulation results with FEA and PRBM approach have been compared with detailed analysis of the important design parameters.
Reference54 articles.
1. Pettersson L. Vibration analysis of a boring bar. Research Report: Blekinge Institute of Technology, Sweden (2002).
2. Improvement of Dynamic Rigidity of Tool Holder by Applying High-Damping Material
3. Shrink fit tool holder connection stiffness/damping modeling for frequency response prediction in milling
4. Freyermuth A., Ostermann M., Cédric R.O.O.S. U.S. Patent No. 8,899,891. Washington, DC: U.S. Patent and Trademark Office (2014).
5. Frictionally damped tool holder for long projection cutting tools