Results 81 to 90 of about 667,141 (301)

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

New approach of friction model and identification for hydraulic system based on MAPSO-NMDS optimization Elman neural network

Advances in Mechanical Engineering, 2017
Hydraulic system smoothness is critical to product quality and position tracking. However, the nonlinear friction is an important factor causing unstable phenomenon of the hydraulic system when at low speed.
Yang Pan, Yibo Li, Pengda Ma, Dedong Liang   +3 more
doaj   +1 more source

Identification of the Dynamic Parameters of a Parallel Kinematics Mechanism with Prismatic Joints by Considering Varying Friction

Applied Sciences, 2020
This study proposed a novel approach for the offline dynamic parameter identification of parallel kinematics mechanisms in which the friction is significant and varying.
Abdur Rosyid, Bashar El-Khasawneh
doaj   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

A generalized friction law depicting the thermal effects at chemical bonding interface

Friction
Non-empirical law depicting how atomic-scale friction behaves is crucial for facilitating the practical design of tribosystems. However, progress in developing a practically usable friction law has stagnated because atomic-scale friction arises from the ...
Yang Wang, Yexin Li, Xiao Huang, Jingxiang Xu, Yusuke Ootani, Nobuki Ozawa, Koshi Adachi, Linmao Qian, Wen Wang, Momoji Kubo   +9 more
doaj   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Data Assimilation Analysis of Rate- and State-Dependent 1-DOF Friction Based on a Particle Filter

Tribology Online
In various dynamic systems, accurately predicting frictional stick–slip motion is critical for maintaining stability. To address this issue, we integrated a particle filter with a rate- and state-dependent friction model to enhance the prediction of ...
Kai Xing, Shingo Ozaki
doaj   +1 more source

Study of longitudinal vibrations of stab knife refiners [PDF]

, 2019
The subject of research is the longitudinal vibrations of stab knife refiners. A model of the fibrous layer between the rotor and stator is developed. It is shown that it is advisable to use the Maxwell-Thomson model for liquid friction of the rotor and ...
Vikharev, S. N., Zasypkina, S. A.
core  

Static Friction Phenomena in Granular Materials: Coulomb Law vs. Particle Geometry

, 1993
The static as well as the dynamic behaviour of granular material are determined by dynamic {\it and} static friction. There are well known methods to include static friction in molecular dynamics simulations using scarcely understood forces.
A. Drescher, A. Rosato, A. Rosato, B. J. Briscoe, B. McNamara, C. A. Coulomb, C. Laroche, C. Tang, D. C. Hong, D. Dhar, E. Clement, E. N. Miranda, F. Dinkelacker, G. A. Held, G. Ristow, G. W. Baxter, G. W. Baxter, G. W. Baxter, H. Caram, H. J. Herrmann, H. M. Jaeger, H. M. Jaeger, H. M. Jaeger, I. Goldhirsch, J. A. C. Gallas, J. A. C. Gallas, J. C. Williams, J. Rajchenbach, J. Rajchenbach, J. Walker, K. L. Schick, K. Wiesenfeld, L. P. Kadanoff, M. Bretz, M. Faraday, M. P. Allen, O. Cutress, P. A. Thompson, P. Bak, P. Cundall, P. Devillard, P. Evesque, P. Evesque, P. Evesque, P. K. Haff, R. Jullien, S. B. Savage, S. B. Savage, S. R. Nagel, S. Soko l owski, T. G. Drake, T. G. Drake, T. Hwa, T. Pöschel, Thorsten Pöschel, Volkhard Buchholtz, Y. H. Taguchi, Y. Tsuji   +57 more
core   +2 more sources

Advances On Lugre Friction Model

, 2013
LuGre friction model is an ordinary differential equation that is widely used in describing the friction phenomenon for mechanical systems. The importance of this model comes from the fact that it captures most of the friction behavior that has been observed including hysteresis.
Fuad, Mohammad, Ikhouane, Fayçal
openaire   +2 more sources