Penetration rate prediction for percussive drilling via dry friction model

Citation
Am. Krivtsov et M. Wiercigroch, Penetration rate prediction for percussive drilling via dry friction model, CHAOS SOL F, 11(15), 2000, pp. 2479-2485
Citations number
12
Categorie Soggetti
Multidisciplinary
Journal title
CHAOS SOLITONS & FRACTALS
ISSN journal
09600779 → ACNP
Volume
11
Issue
15
Year of publication
2000
Pages
2479 - 2485
Database
ISI
SICI code
0960-0779(200012)11:15<2479:PRPFPD>2.0.ZU;2-H
Abstract
A dynamic model of percussive drilling assuming a dry friction mechanism to explain the experimentally observed drop in penetration rate is presented. The inherent nonlinearity of the discontinuous impact process is modelled as a frictional pair, and this can generate the pattern of the impact force s close to reality. Despite quite radical simplifying assumptions, the mode l is able do describe the fall of material removal rate for a higher static loading with a good agreement to experimental investigations. (C) 2000 Els evier Science Ltd. All rights reserved.