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2.562  Articles
1 of 257 pages  |  10  records  |  more records»
AA5454-O is an easily wrought, or in other words, a ductile aluminium alloy, however, its mechanical properties are inferior as compared to those of other alloys. The change taking place in corrosion resistance of AA5454-O alloy as a result of its severe ... see more

Purpose. The value of drive resistance to its movement is the main parameter at calculating the drive power of bridge crane. The value of the wheel rolling friction on the rails is one of the important parts of the resistance to movement. It is necessary ... see more

An analytical dependence to determine the ratio of rolling friction has been proposed, with account of generally accepted mechanical characteristics of materials and the geometrical parameters of wheel and. This allows specifying the starting time of the ... see more

In this paper an probabilistic model of the friction phenomena on the work- back up rolls contact surface has been presented. It has been shown that such character of the disturbance in distribution of zones with static and kinetic friction. can be regard... see more

The predictive abilities of several mathematical models of the cold, flat rolling process are tested by comparing their predictions to experimental measurements. The models include an empirical model, a one-dimensional model, a finite element model and an... see more

This paper presents certain qualitative results of a pilot study concerning the development and evaluation of a teaching strategy based on the construction of a precursor model in developing understanding of the concept of the rolling friction in children... see more

To determine the ratio of flange friction, the article proposes an experimental and analytical method, combining the analytical value for the rolling friction ratio and its experimental value obtained according to the law of oscillations damping in dry fr... see more

The row of tasks of theory of vibrations is decided with the use of dependences for analytical determination of coefficient of friction of cachenie.

For maintenance of the existing rolling-stock in working order it is necessary to carry out qualitative repair. One of directions of development of repair manufacture is the development of new technologies of restoration of the worn out details. It is con... see more

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