Drives' stiffness of 5-axis machine designs: Evaluation and comparison by Schur complement eigenvalues

V. T. Portman, E. Kushnir

Research output: Contribution to journalConference articlepeer-review

Abstract

Stiffness features of three widespread designs of the CNC 5-axis machine tools with a fixed column are investigated: the design with the double-tilting spindle head, with the tilting head and swivel workpiece table, and with the tilt-swivel workpiece table. For this purpose, a new approach presenting a straightforward adaptation of the known robotics method is developed: Schur complement eigenvalues of the stiffness matrix of the machine drives' system are applied to the machine stiffness evaluation. The stiffness-related performance indices of the considered designs are defined and compared.

Original languageEnglish
Pages (from-to)169-174
Number of pages6
JournalProcedia CIRP
Volume118
DOIs
StatePublished - 1 Jan 2023
Event16th CIRP Conference on Intelligent Computation in Manufacturing Engineering, CIRP ICME 2022 - Naples, Italy
Duration: 13 Jul 202215 Jul 2022

Keywords

  • 5-axis machine
  • Machine tool
  • Schur complement
  • Stiffness evaluation
  • Stiffness matrix

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

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