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In-service tests of the effectiveness of vibration control measures on the BART rail transit system

โœ Scribed by Hugh Saurenman; James Phillips


Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
609 KB
Volume
293
Category
Article
ISSN
0022-460X

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On the Effective Control of Torsional Vi
โœ W.R. Tucker; C. Wang ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 837 KB

This paper analyses a control mechanism designed to signiยฎcantly ameliorate the sustained excitation of torsional relaxation oscillations (slipยฑstick) due to frictional torques generated by an active bit during drilling operations with an extended drill-string. The proposed mechanism of torsional re