Results 11 to 20 of about 19,992 (292)
Meikuang Anquan, 2022 Stick-slip vibration generally exists in the process of drilling and construction, and near-horizontal directional drilling in underground coal mines is no exception.
WANG Siyi
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Stick-slip vibration behaviors of BHA and its control method in highly-deviated wells
Alexandria Engineering Journal, 2022 Stick-slip vibration is a common phenomenon met in oil gas drilling, especially in the complex trajectory wells such as highly-deviated wells, it will cause the earlier failure of BHA (bottom hole assembly) and lower drilling efficiency.
Weiji Liu +3 more
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Meikuang Anquan, 2023 For the problem of stick-slip vibration caused by hard rock formation in the process of drill bit penetrating in coal mine, and the discrete element method (DEM) was employed to study the rock cutting performance and stick-slip vibration behavior of PDC ...
Jian CHEN +6 more
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Experimental Study on Axial Impact Mitigating Stick-Slip Vibration with a PDC Bit
Shock and Vibration, 2021 Stick-slip vibration reduces the drilling rate of penetration, causes early wear of bits, and threatens the safety of downhole tools. Therefore, it is necessary to study suppression methods of stick-slip vibration to achieve efficient and safe drilling ...
Yong Wang +7 more
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Acoustically-induced slip in sheared granular layers: application to dynamic earthquake triggering [PDF]
, 2015 A fundamental mystery in earthquake physics is ``how can an earthquake be triggered by distant seismic sources?'' Here, we use discrete element method simulations of a granular layer, during stick-slip, that is subject to transient vibrational excitation
Carmeliet, Jan +5 more
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Hysteretic behavior of a belt tensioner: modeling and experimental investigation [PDF]
, 2005 In this paper we describe the modeling of the hysteretic behavior of belt tensioners. An initial experimental device is composed only of the tensioner by using forcing frequencies, preloads and deflection amplitudes.
Dufour, Regis +2 more
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Formation Mechanism of Metro Rail Corrugation Based on Wheel–Rail Stick–Slip Behaviors
Applied Sciences, 2021 Field investigation shows that most corrugations occur on the inner rail surface of curved tracks with a radius of less than 700 m. In order to explore the formation mechanism of metro corrugation, the relationship between wheel–rail stick–slip ...
Zhiqiang Wang, Zhenyu Lei
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Canards in stiction: on solutions of a friction oscillator by regularization [PDF]
, 2017 We study the solutions of a friction oscillator subject to stiction. This discontinuous model is non-Filippov, and the concept of Filippov solution cannot be used. Furthermore some Carath\'eodory solutions are unphysical.
Bossolini, Elena +2 more
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Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling [PDF]
, 2015 Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an adhesive tape from a flat surface. In a given range of peeling velocity, this front displays a multiscale unstable dynamics, entangling two well ...
Ciccotti, Matteo +4 more
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Vehicles, 2023 Inspired by the difference in the friction radii of the pads from the high-speed train brake system, stick–slip experiments for a disc–block friction system with different friction radii were carried out via a test device.
Changlin Lu +5 more
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