Stick-Slip Analysis of a Drill String Subjected to Deterministic Excitation and Stochastic Excitation
Joint Authors
Yang, Jianming
Qiu, Hongyuan
Butt, Stephen
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-29
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Using a finite element model, this paper investigates the torsional vibration of a drill string under combined deterministic excitation and random excitation.
The random excitation is caused by the random friction coefficients between the drill bit and the bottom of the hole and assumed as white noise.
Simulation shows that the responses under random excitation become random too, and the probabilistic distribution of the responses at each discretized time instant is obtained.
The two points, entering and leaving the stick stage, are examined with special attention.
The results indicate that the two points become random under random excitation, and the distributions are not normal even when the excitation is assumed as Gaussian white noise.
American Psychological Association (APA)
Qiu, Hongyuan& Yang, Jianming& Butt, Stephen. 2016. Stick-Slip Analysis of a Drill String Subjected to Deterministic Excitation and Stochastic Excitation. Shock and Vibration،Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1120032
Modern Language Association (MLA)
Qiu, Hongyuan…[et al.]. Stick-Slip Analysis of a Drill String Subjected to Deterministic Excitation and Stochastic Excitation. Shock and Vibration No. 2016 (2016), pp.1-7.
https://search.emarefa.net/detail/BIM-1120032
American Medical Association (AMA)
Qiu, Hongyuan& Yang, Jianming& Butt, Stephen. Stick-Slip Analysis of a Drill String Subjected to Deterministic Excitation and Stochastic Excitation. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1120032
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120032