Results 11 to 20 of about 1,408 (249)
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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Avoidance of Stick‐Slip Motion by Vibration Control [PDF]
PAMM, 2003 AbstractThis paper deals with the excitation mechanisms of friction induced vibrations and recently found methods to avoid these vibrations. It is remarkable, that mechanisms of excitation and avoidance are closely related and, infact, the presented idea and realization of vibration control is derived from theoretical investigation of excitation ...
Popp, K., Rudolph, M.
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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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The effect of dynamic normal force on the stick–slip vibration characteristics
Nonlinear Dynamics, 2022 Abstract In the experiment, we observed such a phenomenon: the alternating normal force changes the vibration state of a friction system. A single-degree-of-freedom mathematical model was used in this paper to discuss the effects of a constant and alternating normal force on the stick-slip vibration characteristics for different dynamic and ...
Zhu, YG +4 more
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Stick–slip vibration of a friction damper for energy dissipation [PDF]
Advances in Mechanical Engineering, 2017 This article studies energy dissipation of a friction damper (due to stick–slip vibration) in the context of harmonic excitation. There are numerous applications of such friction dampers in engineering. One particular example is a new kind of under-platform dry friction dampers for aero engines. The model consists of a clamped cross-like beam structure
Bingbing He +3 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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Stick-Slip Vibrations Induced by Alternate Friction Models [PDF]
Nonlinear Dynamics, 1998 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leine, R.I. +3 more
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Test on Stick-Slip Vibration of PDC Bit in Horizontal Wells
Shiyou jixie, 2023 Stick-slip vibration can lead to PDC bit damage and downhole instrument failure,while testing is a method commonly used to study the stick-slip vibration of drill string system in horizontal wells.In the paper,a micro PDC bit was designed to conduct rock
Long Wei +6 more
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Study on suppressing of stick-slip using dynamic vibration absorber
Nihon Kikai Gakkai ronbunshu, 2019 This study discussed design criteria for suppressing stick-slip using dynamic vibration absorber. First, a simplified analytical model that can quantify the effect of the dynamic vibration absorber on the occurrence and nonoccurrence conditions of stick ...
Satoru MAEGAWA, Fumihiro ITOIGAWA
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