Penetration rate prediction for percussive drilling via dry friction model

A M Krivtsov, M Wiercigroch

Research output: Contribution to journalArticle

21 Citations (Scopus)


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 forces close to reality. Despite quite radical simplifying assumptions, the model is able do describe the fall of material removal rate for a higher static loading with a good agreement to experimental investigations. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2479-2485
Number of pages7
JournalChaos, Solitons & Fractals
Issue number15
Publication statusPublished - Dec 2000

Bibliographical note

The authors would like to kindly acknowledge the financial support from the Royal Society of London under the grant No. NATO/98/nvb funded jointly by NATO and the Royal Society.


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