Results 11 to 20 of about 4,917 (261)

Multi Scale Modelling of Friction Induced Vibrations at the Example of a Disc Brake System

Applied Mechanics, 2021
Friction induced vibrations such as brake squealing, or juddering are still challenging topics in product engineering processes. So far, this topic was particularly relevant for the automobile industry because they were the main market for disc brake ...
Arn Joerger, Ioannis Spiropoulos, Robert Dannecker, Albert Albers   +3 more
doaj   +1 more source

Reducing critical effects of torsional vibrations induced by PDC bits during rock destruction

Известия высших учебных заведений: Геология и разведка, 2022
Introduction. Torsional vibrations caused by drilling using a polycrystalline diamond compact (PDC) bit are analysed using wellbore data obtained under various drilling modes. The drilling caused by torsional vibrations are analysed.
B. A. Ovezov, K. O. Shcherbakova, L. R. Kalendarova, P. A. Romanov, D. A. Kuznetsova   +4 more
doaj   +1 more source

A New Efficient Adaptive Control of Torsional Vibrations Induced by Switched Nonlinear Disturbances

International Journal of Applied Mathematics and Computer Science, 2019
Torsional vibrations induced in drilling systems are detrimental to the condition of the machine and to the effectiveness of the engineering process. The cause of vibrations is a nonlinear and unknown friction between a drill string and the environment ...
Wasilewski Maciej, Pisarski Dominik, Konowrocki Robert, Bajer Czesław I.   +3 more
doaj   +1 more source

Model Reduction Technique for Analysing Friction-Induced Vibrations and Radiated Sound

International Journal of Automotive Engineering, 2018
A novel approach for the calculation of friction induced vibration is presented and applied to a real life example. The balance equations of continuum mechanics representing the underlying physics are simplified and then solved numerically.
Konrad Weisheit, Steffen Marburg
doaj   +1 more source

Friction-Induced Vibration Suppression via the Tuned Mass Damper: Optimal Tuning Strategy

Lubricants, 2020
Friction-induced vibrations are a significant problem in various engineering applications, while dynamic vibration absorbers are an economical and effective tool for suppressing various kinds of vibrations.
Jia Lin Hu, Giuseppe Habib
doaj   +1 more source

Solid-Liquid Triboelectric Nanogenerator Based on Vortex-Induced Resonance

Nanomaterials, 2023
Energy converters based on vortex-induced vibrations (VIV) have shown great potential for harvesting energy from low-velocity flows, which constitute a significant portion of ocean energy.
Xiaowei Li, Di Zhang, Dan Zhang, Zhongjie Li, Hao Wu, Yuan Zhou, Biao Wang, Hengyu Guo, Yan Peng   +8 more
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Analytical Determination of Stick–Slip Whirling Vibrations and Bifurcations in Rotating Machinery

Applied Sciences
In rotating machinery, aerodynamic forces and oil film forces often lead to cross-coupling stiffness. This paper is aimed at studying the stick-slip whirling vibrations induced by the piecewise smooth rotor/stator frictions in a modified flexible rotor ...
Duhui Lu, Mukai Wang, Yeyin Xu, Xinya Wang, Shunzeng Wang   +4 more
doaj   +1 more source

Two-Step Finite Element Model Tuning Strategy of a Bridge Subjected to Mining-Triggered Tremors of Various Intensities Based on Experimental Modal Identification

Energies, 2021
In this paper, a two-step tuning strategy of a finite element (FE) model of a bridge with pot bearings exposed to mining-triggered tremors of various intensities is proposed. In the study, a reinforced concrete bridge 160 m long is considered.
Paweł Boroń, Joanna Maria Dulińska, Dorota Jasińska   +2 more
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The impact of vibration on buildings: Problems and solutions [PDF]

E3S Web of Conferences
The article presents a comprehensive overview of a study investigating the influence of soil-foundation interaction on the natural frequencies and vibration safety of reinforced concrete cellular and frame buildings.
Kovrova Viktoriia, Volkova Viktoriia, Pakrastins Leonids   +2 more
doaj   +1 more source

Stability of friction-induced vibrations in water-lubricated bearings with interfacial mechanical effects

Friction
In this work, a friction-induced vibration model for water-lubricated bearings (WLBs) is developed. The model incorporates interfacial mechanical effects, including the stiffness and damping coefficients of the water film, contact stiffness of asperities,
Guo Xiang, Jiliang Mo, Huajiang Ouyang, Michel Fillon, Guangwu Zhou, Liwu Wang, Changqi Zhou   +6 more
doaj   +1 more source