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

页码：350 / 359

页数：9

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