Results 11 to 20 of about 19,554 (250)
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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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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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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Analytical Formulation of the Jacobian Matrix for Non-linear Calculation of the Forced Response of Turbine Blade Assemblies with Wedge Friction Dampers [PDF]
, 2006 A fundamental issue in turbomachinery design is the dynamical stress assessment of turbine blades. In order to reduce stress peaks in the turbine blades at engine orders corresponding to blade natural frequencies, friction dampers are employed.
Cameron +15 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
doaj +1 more source
Measurement and Analysis of Downhole Drill String Vibration Signal
Applied Sciences, 2021 Downhole drill string vibration data can provide an effective reference for research drill string vibration during drilling. In this paper, the research group used a storage-type downhole vibration measurement equipment equipped with an orthogonal, three-
Yafeng Li +4 more
doaj +1 more source
Lubricants, 2022 In this study, we discussed the occurrence condition stick-slip model based on a 2DOF system, in which a 1DOF system model commonly used in stick-slip analysis was attached on an elastic foundation.
Satoru Maegawa +2 more
doaj +1 more source
Modeling and Control of a Flexible Structure Incorporating Inertial Slip-Stick Actuators [PDF]
, 1999 Shape and vibration control of a linear flexible structure by means of a new type of inertial slip-stick actuator are investigated. A nonlinear model representing the interaction between the structure and a six-degree-of-freedom Stewart platform system ...
Darby, A. P., Pellegrino, S.
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Study on Drill String Stick-slip Vibration Pattern Under Bit-Rock Interaction
Shiyou jixie, 2023 Stick-slip vibration leads to high-frequency shear stress on drill string and premature fatigue of drill string.Therefor,the torsional vibration model of drill string system considering bit-rock interaction was built by coupling the bit-rock interaction ...
Xing Xuesong +4 more
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