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Static and dynamic coefficient of friction in friction pairs of disc-pad brakes
Bulletin of Kharkov National Automobile and Highway University, 2022Problem This scientific article is devoted to the value of static and dynamic coefficients of friction of disc-pad brakes. The issue of disc-pad brake wear is very acute because the safety of using the machine itself depends on its reliable operation. Therefore, the relevance of the chosen topic cannot be doubted. Goal.
Nataliya Fidrovska +4 more
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Relation between the static-friction and slipping-friction coefficients
Russian Engineering Research, 2015A method of establishing the relation between the static-friction and slipping-friction coefficients of a specific pair of materials is proposed. The theoretical basis of the method is outlined, and the corresponding device is described.
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Effect of Bushing Miniaturization on the Static Friction Coefficient
Journal of Testing and Evaluation, 2016Abstract As machines become smaller, friction plays an increasingly important role in their performance. Although friction is a well-studied phenomenon, few studies have been performed on bushings and shafts with loads of a few tens of mN and dimensions of a few mm.
Omar Olvera-Tapia +4 more
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The Nature of the Static and Kinetic Coefficients of Friction
Journal of Applied Physics, 1951Experiments have been carried out to determine the transition between static and kinetic conditions when stationary metal surfaces are set into motion, a simple method being used which measures the energy that has to be given to one of the bodies to start it moving.
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An identification method for static and coulomb friction coefficients
International Journal of Control, Automation and Systems, 2009This paper deals with the identification of static and Coulomb friction coefficients. An approach based on limit cycles properties once the mechanical system is brought to oscillations is proposed. This leads to an explicit formulation in the regulator parameters on one part, and the oscillation amplitude and period on the other part.
Borsotto, Bastien +3 more
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Static friction coefficients for mechanical and structural joints
Wear, 1974Abstract A review of available data on static friction of steel is presented. This is directed towards obtaining coefficients of friction applicable to structural connections, particularly those subject to vibratory loading. The data are found to be inadequate and widely scattered, showing some dependence on normal pressure.
H. Nolle, R.S.H. Richardson
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Experiments on the temperature coefficient of static friction
Proceedings of the Physical Society, 1941Angles of repose of metals have been measured under controlled vacuum conditions. Preliminary measurements were made at room temperature in air. As it was found that vibrations tended to reduce the angle of repose, they were eliminated. Naked metal surfaces were obtained for aluminium and cadmium by cleaning by volatilization in a high vacuum ...
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Effect of static correlations on the pair friction coefficient
The Journal of Chemical Physics, 1980A calculation of the spatial dependence of the pair friction tensors ζij(r12), (i, j=1,2) for two hard sphere solute particles in a hard sphere fluid is presented. The calculation is based on a kinetic theory expression for the pair friction tensor. The contribution from dynamically uncorrelated collisions is computed here.
Robert I. Cukier +2 more
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Measurements of the Static Friction Coefficient Between Bone and Muscle Tissues
Journal of Biomechanical Engineering, 2010This study aimed at measuring the static coefficient of friction (μ) between bone and skeletal muscle tissues in order to support finite element (FE) modeling in orthopaedic and rehabilitation research, where such contact conditions need to be defined.
Sharon, Shacham +2 more
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Static friction coefficient determination by force sensing and its application
Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'94), 2002One of the essential parts of dextrous manipulation with fingers is the use of sliding motion. Sliding manipulation techniques can fulfil tasks, such as a change of contact point between fingers and objects, a change in the location of objects without losing contact under unknown object-fingertip surface conditions or the determination of an optimal ...
Ralf Bayrleithner, Kiyoshi Komoriya
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