## Volume 7, N1, 2015

*Azərbaycan Mühəndislik Akademiyasının*

**XƏBƏRLƏRİ**

**HERALD**

*of the Azerbaijan Engineering Academy*

**ВЕСТНИК**

*Азербайджанской Инженерной Академии*

Beynəlxalq elmi-texniki jurnal

The international scientifically technical journal

Международный научно-технический журнал

Cild 7. №1 / Vol. 7. №1 / Том 7. №1

BAKI – 2015

**C O N T E N T S**

**1. The modern problems of durability and deformations in solid-state physics** *(page 7)*

PASHAYEV A.M., JANAHMADOV A.KH.

*The analysis of modern approaches to engineering problems of mechanics of process of destruction and formation of blankets as a result of thermomechanical influences is given. Possible ways of designing of composite materials of new generation on the basis of the theory of the physical mesomechanics which is analog of other calibration theories are planned.
The relevance of application in mechanical engineering of progressive technologies of nanostructuring of the surface layers and the nanostructural coating, considerably increasing wear resistance, durability and other important characteristics of elements of designs are shown in the paper.*

**2. Fluctuations on fractal defective structure of the elastic solid body ***(page 17)*

QURBANOV R.A., DYSHIN O.A., PANAKHOVA N.D.

*In work the analysis of the main results on elastic fluctuations of fractal structures of solid bodies with application of the theory of frakton allowing to solve a problem about distribution of waves in the non-uniform disorder environments ot described by models of the continuous environment is given. The ways of calculation of frakton (spectral) dimension and methods of allocation phonon and fraktonny making a range of elastic fluctuations of fractal materials are considered.
The application of frakton approach examine fluctuations of the fractal clusters which are formed in hierarchical defective structure of an elastic solid body is shown.*

**3. Two-channel piezoelectric accelerometer ***(page 29)*

PASHAYEV A.M., GURBANOV T.B., KARIMLI T.I.

*The article considers a two-channel piezoelectric accelerometer which allows the simultaneous measurement of vibration and linear acceleration of engines.*

**4. Electrothermomechanical wear and destruction of rims of brake pulleys of drilling draw-works (Part I) ***(page 36)*

JANAHMADOV A.KH., VOLCHENKO A.I., PIRVERDIYEV E.S.,

ZHURAVLEV D.YU., VOZNY A.V., KRASIN P.S.

*We’ve illustrated energy loading of brake pulleys of draw works and circulation patterns of thermal currents in their cells and we’ve determined the influence of design and operational parameters on the thermal stresses in the rim of the pulley.*

**5. Investigation of wear on the mount of the turbine flow-meter ***(page 57)*

JAVADOV N.G., QULIYEV F.F., QUMBATOV M.Ş., MEKHTIYEV A.M.

*The wear on the mount of turbine meter is investigated.
It has been proven that to calculate wear of the mount of the turbine flow-meter following should be done:
find the angular coordinates based on the Hetrz formula;
find the function φ0(t) based on the given time period;
build the curves for φ0(t) and φ0(0);
based on the built curve find the maximum wear of the mount.*

**6. Load-carrying capacity of a fiber–reinforced annular three-layer composite plate, clamped on internal and free supported on external contours ** *(page 61)*

JAGANGIROV A.A.

*The paper studies the bearing capacity of a three-layer circular plate clamped on the inner loop and freely supported on the outer edges, coating on the front side of the thin layers. Middle layer plate reinforced with fibers. It is assumed that the matrix materials, fibers and coatings are perfectly plastic without hardening. It is shown that the plate ring divided into five zones, each of which implements a variety of plastic state. Static fields defined moments and kinematic velocity field deflections, found the equation for the unknown radius separating different plastic zones, as well as the equations for determining the reference reaction and the ultimate load in the case of a uniformly distributed transverse load. Also determined the kinematic possible velocity field deflections.
*

**7. Mass-transfer by countercurrent extraction process of wastewater in the spray tower and modeling of apparatus ** *(page 71)*

GASANOV A.A.

*A technology is developed for wastewater purification by solvent extraction using the extractor spray. The paper presents results of research on wastewater treatment plants from paint butyl glycol, phenyl-iso-propanol, acetic acid and acetyl-acetone. A mathematical model is proposed for the process to determine the specific surface of the contact surface, the distance between the cells of the extractor, mass-transfer coefficients and mass-transfer components in phases, calculated concentrations of the components in opposite phases and the height of the machine.*

**8. Method of intellectual control of the stream of reactive power in load nodes of the power supply system on the basis of fuzzy-logic** *(page 85)*

GULIYEV H.B.

*Based on the fuzzy controllers an intelligent control system is developed for the reactive power, which reduces the power losses in the network elements and the excitation system of synchronous motor, and also supports a substantial reserve of reactive.*

**9. Ecological and economical estimation of alternative energy plants use in oil field technological process** *(page 95)*

MAMMADOV F.F.

*The ways of using alternative energy sources is studied for the industrial processes, such as production, preparation, processing and transportation of oil in terms of fields, in order to save fuel and provide the evaluation of environmental pollution. The methodological approaches are indicated which takes into account the factors of time, economic and environmental efficiency of alternative energy sources and the use of standard, existing to date equipment. The expediency of using the renewable energy sources is established.*

**10. Price modelling using the stochastic model of financial data ** *(page 102)*

JAVADOVA S.M.

*Based on a stochastic model of the stock price as a function of a Wiener process, the computational procedure of forecasting stock price is developed. To generate a Wiener process the canonical decomposition of a random function is used for its values in a discrete number of points.*

**11. Information basis of biological neuron** *(page 121)*

RZAYEV AB.G., RASULOV S.R.

*The volume – structural model (symmetric tetra-octahedron structure) is built for the water cluster, similar by the nature with the functional organoids (endoplasmic net, Golgi complex) of neuron and this model can make up the information basis of biological neuron.*

**To birthday of Arif Pashayev ** (page 133)