"Механики XXI веку" №16 2017

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Механики XXI веку. № 16 2017 г.
388
Study of surface roughness in relation to the pressure of the body
Fayzov A.H.1a, Prikhodkov A.S.2,b, Gerasimov S.N. 3,c, Mamaev L.A. 4,d.
Bratsk State University, st . Makarenko 40, Bratsk, Russia
a ,b c d
Keywords: surface roughness, surface, carriage-dimensional co-oscillations, static loading, the
pressure of the working body
Note that the effect of pressure on the value of the roughness is not linear, reflecting a number of
features of contact interaction: a roughness value of the increase in pressure is reduced, however, a large
increase in pressure does not lead to adequate reduction in roughness level. Observation of the general
background vibration interactions indicates that operating unit with two working heads performs spatial
rather than one-dimensional oscillations, in which the angular components present at the level of the longi-
tudinal direction of 1.3-1.5 mm at an angular frequency of rotation of the cranks. Turning vibrators [1]
leads to stabilization of certain vibrational states of angular oscillation amplitude is reduced by 35-40%,
while the total amount of roughness as compared with the static loading is reduced on average by 18-20%.
Thus, the increase in pressure as a potent factor has its limitations, which, on the one hand determined by
the continuity of contact conditions (square wave frequency multiplied by the amplitude value must corre-
spond to acceleration due to gravity), while on the other hand depends on the nonlinear elastic properties of
the contact interaction.
УДК 621. 879. 3: 534. 8
Redusing the adhesion between soil and working bodies of earth-
moving machines using piezoceramic emitters
ZenkovS.A.a, Mineev D.A.b, Gleba V.S. с, Kirichenko O.P.
Bratsk State University,40Makarenkost., Bratsk, 665709, Russian Federation
a
Keywords: piezoceramic, emitter, adhesives, earth-moving machines, soil
This article examines the use of piezoceramic emitters for controlling adhesion of soil to the working
bodies of earth-moving machines. Also, an experiment, was performed, and the experimental data obtained.
After treatment patterns and shows a graphical interpretation of the effect of piezoceramic emitters were
obtained. Subsequently, it was concluded that the use of piezoceramic emitters it more advantageous in
terms of compactness and equally spaced on the surface of the working body than, for example, the use of the
currently existing means for heating the ladle or vibration exposure has been shown that the technical per-
formance of the excavator with a device intensifying action to reduce adhesion of soils when working on wet
ground at a negative temperature in 1,2…1,4 times greater than the excavator is not equipped with such a
device, i.e. the economic impact of their implementation due to increased productivity. Therefore, we can
talk about the feasibility of the use of piezoceramic emitters to reduce soil adhesion to the working bodies
ground machines.
In developing the machine wet cohesive soils (especially with negative temperature) adhe-
sion and freezing of the soil at the working bodies essentially performance machines. Performance