Prediction of robust stability boundaries for milling operations with extended multi-frequency solution and structured singular values

David Hajdu, Tamas Insperger, Daniel Bachrathy, Gabor Stepan

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Reliable prediction of machine tool chatter is an essential problem in efficiency-oriented machine tool centers, since it requires the precise characterization of the dynamics of the machine-tool-workpiece system and the cutting force characteristics. Due to imperfect measurements, noise, uncertain and varying operational conditions, the mathematical models provide a deficient representation of the system. This leads to the need for the adaptation of robust stability analysis methods, which guarantee stability against bounded uncertainties and perturbations. In this paper, a frequency-domain approach is presented to calculate the robust stability boundaries of chatter-free machining parameters for milling operations. The idea is based on the concept of the stability radius and structured singular values, which is combined with the extended multi frequency solution. The proposed method is tested in a real case study.

Original languageEnglish
Pages (from-to)281-289
Number of pages9
JournalJournal of Manufacturing Processes
Volume30
DOIs
Publication statusPublished - Dec 2017

Keywords

  • Chatter
  • Milling
  • Robustness
  • Stability lobe diagram
  • Structured singular values

ASJC Scopus subject areas

  • Strategy and Management
  • Management Science and Operations Research
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Prediction of robust stability boundaries for milling operations with extended multi-frequency solution and structured singular values'. Together they form a unique fingerprint.

  • Cite this