A self-exciting system for percussive–rotary drilling
A dynamic model for a new principle of self-excited percussive–rotary drilling is presented. The system uses the stick-slip phenomenon to generate an impact action superimposed on the drilling process. This is a strongly nonlinear mechanical system with two-degrees-of-freedom, in which friction-indu...
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2003
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rr-article-95235352003-01-01T00:00:00Z A self-exciting system for percussive–rotary drilling Andre D.L. Batako (7201484) Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified A dynamic model for a new principle of self-excited percussive–rotary drilling is presented. The system uses the stick-slip phenomenon to generate an impact action superimposed on the drilling process. This is a strongly nonlinear mechanical system with two-degrees-of-freedom, in which friction-induced vibration is used for excitation of impacts. The model has to take account of the returning effect that the impacts have on the parameters of stick-slip motion. The model incorporates friction force as a function of sliding velocity, where the self-excitation of coupled vibration of the rotating bit and the striker tend to a steady-state periodic cycle. Dynamic coupling of vibro-impact action with the stick-slip process brings innovative adaptive features into the drilling process. [Continues.] 2003-01-01T00:00:00Z Text Thesis 2134/34082 https://figshare.com/articles/thesis/A_self-exciting_system_for_percussive_rotary_drilling/9523535 CC BY-NC-ND 4.0 |
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Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified |
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Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified Andre D.L. Batako A self-exciting system for percussive–rotary drilling |
| description |
A dynamic model for a new principle of self-excited percussive–rotary drilling is presented. The system uses the stick-slip phenomenon to generate an impact action superimposed on the drilling process. This is a strongly nonlinear mechanical system with two-degrees-of-freedom, in which friction-induced vibration is used for excitation of impacts. The model has to take account of the returning effect that the impacts have on the parameters of stick-slip motion. The model incorporates friction force as a function of sliding velocity, where the self-excitation of coupled vibration of the rotating bit and the striker tend to a steady-state periodic cycle. Dynamic coupling of vibro-impact action with the stick-slip process brings innovative adaptive features into the drilling process. [Continues.] |
| format |
Default Thesis |
| author |
Andre D.L. Batako |
| author_facet |
Andre D.L. Batako |
| author_sort |
Andre D.L. Batako (7201484) |
| title |
A self-exciting system for percussive–rotary drilling |
| title_short |
A self-exciting system for percussive–rotary drilling |
| title_full |
A self-exciting system for percussive–rotary drilling |
| title_fullStr |
A self-exciting system for percussive–rotary drilling |
| title_full_unstemmed |
A self-exciting system for percussive–rotary drilling |
| title_sort |
self-exciting system for percussive–rotary drilling |
| publishDate |
2003 |
| url |
https://hdl.handle.net/2134/34082 |
| _version_ |
1797462605632110592 |