Results 211 to 220 of about 985,018 (255)

Effects of time delay on excited quarter- and half-car models with jumping nonlinearities. [PDF]

PLoS One
Watanabe M, Shrimali MD, Prasad A.
europepmc   +1 more source

Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise. [PDF]

Biomimetics (Basel)
Zhang B, Jiang L, Fang R.
europepmc   +1 more source

Modeling, Design, and Laboratory Testing of a Passive Friction Seismic Metamaterial Base Isolator (PFSMBI). [PDF]

Materials (Basel)
Khosravi S, Amjadian M.
europepmc   +1 more source

Electrostatic Actuation Induces Competing Adhesion and Vibration Regimes at Fingertip Contact

Kenanoglu CU, Wiertlewski M, Vardar Y.
europepmc   +1 more source

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Fuzzy Smith predictor–based active disturbance rejection controller for time-delay systems with application to drilling stick–slip vibration control

J. Syst. Control. Eng., 2022
This study investigated the design of a drill bit stick–slip vibration and active disturbance rejection controller under the influence of an uncertain load at the bottom of a drill hole.
De-Chun Ba, Guangwu Chen, Peng Li, Kexin An, Xiaobao Liu   +4 more
semanticscholar   +1 more source

Nonlinear integrated dynamic analysis of drill strings under stick-slip vibration

, 2021
Stick-slip torsional vibration raising from bit-formation contact is a catastrophic dynamic phenomenon occurring in deep-water oil and gas drilling systems. The torsional vibrations can result in premature fatigue failure of drilling equipment and reduce
M. Moharrami, C. Martins, H. Shiri
semanticscholar   +1 more source

Suppressing Friction-Induced Stick-Slip Vibration and Noise of Zinc-Coated Steel through Temper Rolling.

Langmuir
The stick-slip phenomenon as a prevalent friction instability poses significant challenges to industry, including frictional vibration, reduced precision, and noise generation.
Lijia Zhao, Hao Gao, Shaolong Sheng, Wenbin Ma, Haibo Liu, Kai Wang, Qiang Wang   +6 more
semanticscholar   +1 more source

Friction-induced stick-slip vibration and its experimental validation

Mechanical systems and signal processing, 2020
Friction is known to cause vibration in many situations and one particular kind of friction-induced vibration is in the form of stick-slip vibration, which is of fundamental significance in science due to its ubiquitous nature.
Wang Xiaofan, B. Huang, R. L. Wang, J. Mo, H. Ouyang   +4 more
semanticscholar   +1 more source

Rock–bit interaction effects on high-frequency stick-slip vibration severity in rotary drilling systems

Multidiscipline Modeling in Materials and Structures, 2021
PurposeThe drill string vibrations can create harmful effects on drilling performance because they generate the stick-slip phenomenon which reduces the quality of drilling and decreases the penetration rate and may affect the robustness of the designed ...
C. Mendil, M. Kidouche, M. Z. Doghmane, S. Benammar, K. Tee   +4 more
semanticscholar   +1 more source

Multiscale Temporal Convolutional Network-Based End-to-End Recognition of Drill-String Stick-Slip Vibration in Drilling Process

IEEE Transactions on Industrial Informatics
Severe drill-string vibration is a significant source of drilling problems. Most existing methods for vibration recognition rely on downhole data, facing great limitations in practice.
Xiao Wu, X. Lai, Jie Hu, Chengda Lu, Min Wu   +4 more
semanticscholar   +1 more source