Self-excited vibrations of a drillstring bit

被引：0
|
作者：
Gulyaev V.I. [1 ]
Lugovoi P.Z. [2 ]
Borshch E.I. [1 ]
机构：
[1] National University of Transport, 1 Suvorova St., 01010, Kyiv
[2] S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, 3 Nesterova St., 03057, Kyiv
来源：
International Applied Mechanics | 2013年 / 49卷 / 03期
关键词：
drillstring; frictional force; nonconservative moment; rotating drill bit; whirling vibration;
D O I：
10.1007/s10778-013-0573-y
中图分类号：
学科分类号：
摘要：
The whirling vibrations of a rotating drillstring bottom-hole assembly subject to the moment of friction are analyzed qualitatively. A problem statement and solution are given. The self-excitation of vibrations is simulated. It is established that during the self-excitation of whirling vibrations, the axial line of the drill bit can slowly and rapidly move over intricately shaped nonsmooth conical surfaces © 2013 Springer Science+Business Media New York.
引用
收藏
页码：350 / 359
页数：9
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