(Click here to view PDF file)

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. №2 / Vol. 7. №2 / Том 7. №2

BAKI – 2015

C O N T E N T S

1. Method of evaluating load and center of gravity of aircrafts, and their accuracy of measurement (page 7)
A.M. PASHAYEV, I.A. ISGANDAROV, E.A. AGAYEV
The article looks at methods of evaluating load and center of gravity of aircrafts. As an example, based on the airplane A320-214 Load and Trimsheet (tables for load and center of gravity) the listed parameters are determined. Using a new contacless method, the authors calculated the mean square deviation, the average score error, the probabilistic error. A new methods proved to be effective in calculated the above parameters.

2. Analysis of queuing model with jump-like priorities depending on system conditions (page 14)
T.I. JAFARZADE
The queuing model of single channel system with a common finite buffer serving two types of calls is investigated in the article. The formulas for calculating the quality parameters of service system are obtained.

3. Diagnosing of contact interaction of solid bodies at friction with application
of methods of the fractal analysis
(page 22)
A.M. PASHAYEV, A.Kh. JANAHMADOV, M.Y. JAVADOV, O.A. DYSHIN
Additional quantitative instruments of research of surface roughness are developed: fractal dimension of curve of bearing surface and fractal dimension of profilograms. These values are used for the classification of the modes of contact interaction of metal elements at friction and for the diagnosis of contact type according to the scale of fractal dimensions describing the main three types of contact: elastic, elastic-plastic and plastic.

4. Principles of indirect forecasting of reliability of fuel equipment after repair (page 40)
A.G. GUSEYNOV, E.R. ASTANOVA, А.А. SOLDATOV
Forecast results of quantitative values of reliability indicators of fuel equipment are given in the paper, it also investigates the interaction between the pump repair and environment within forecast time interval. The sequence of independent interaction acts is presented.

5. Electro-thermo-mechanical wear and destruction of rims of brake pulleys
of drilling draw-works (Part II)
(page 44)
A.Kh. JANAHMADOV, A.I. VOLCHENKO, E.S. PIRVERDIYEV, D.YU. ZHURAVLEV, A.V. VOZNY, P.S. KRASIN
We’ve illustrated energy-loading and electric-thermal-mechanical wear of work surfaces of rim of brake pulleys and disclosed the nature of the occurrence and development of cracks on the surface and in the subsurface layer of rim of brake pulley.

6. Development of normative and technical norms for technical regulation production (page 65)
Sh. Yu. ADIGEZALOV
The technical regulation is the normative and technical foundation, and the certification is the base for standardization to create a competitive products. Those and some other questions are widely discussed in the article.

7. The research and development of the highly efficient catalyst
of the C3-C4 hydrocarbon processing
(page 71)
S.R. RASULOV, N.A. SALIMOVA, G.P. MUSTAFAEVA, L.V. GUSEYNOVA
The effect of the different input methods of modifiers is studied: ion exchange, impregnation and dry mechanical mixing of catalytic properties of the zeolite base catalyst at the C3-C4 hydrocarbon conversion. The obtained quantitative data helps to identify the significant differences for the thermo-steaming and thermal activation of the modified catalyst exhibited during the conversion of the C3-C4 hydrocarbons and the selectivity of aromatic hydrocarbons.
It is shown that the sample made of by the mechanical mixing with a subsequent high temperature treatment is most active.
The regularities of the reaction-regeneration cycles are established.

8. Synthesis and physico-chemical studies of the complex compound
monoaqua-tribenzoate-monoiron (III)
(page 82)
F.B. ALIYEVA, B.T. USUBALIYEV, M.K. MUNSHIYEVA, F.T. MURVATOV, F.F. JALALADDINOV, Z.A. MAMEDOVA, P.S. SAFAROVA
New complex compounds of iron (II) and (III) with benzoic acid are synthesized. According to the ele¬mental, X-ray, IR-spectroscopic and derivative-graphic analyzes individuality and the chemical formulas of com¬plex compounds are established. It was established that the divalent and trivalent iron salts in the reaction with sodium salts of benzoic acid from a complex compound of the same composition Fe(C6H5COO)3(H2O). This is due to the fact that, before the formation of the complex compound the created hexa-aqua cation [Fe(H2O)6]+2 is rather easily oxidized in the [Fe(H2O)6]+3.
The influence of complex compound on rheological property of oil is fully examined.

9. Research of technology of compressors and gas installations in gas-supply process (page 90)
A.N. GURBANOV
On the basis of filed and research works on the Kalmaz underground gas storage (UGS) the optimum technologies on stabilization of gas-compressor station (GCS) are developed for stabilization of operation of compressors. The results of research are introduced in the operating wells of UGS, in the preparation installations for gas transportation, in gas pipelines and others technological equipment.

10. The analysis of cavitational technologies and studying of physical
and chemical properties of transported oil in the course of cavitation
(page 96)
V.X. NURULLAYEV, F.S. KHARAMANOV, S.T. ALIYEV
The article views the general information on cavitation and lists all known conditions and conditions of its occurrence as hydraulic phenomenon. It is noticed, that despite a negative influence cavitation, the phenomena has also a positive impact. The application of these effects in meso- and micro-spaces with new nano-objects that extends the list of possible perspective technologies, are shown in the paper.
Under laboratory conditions, the chemical features of the Azerbaijan oil with small content paraffin are analyzed on borders of the cavitation zone, the results of which are given in the table. The carried out researches show that applied to oil and petroleum products the cavitation technologies can improve their rheological characteristics and quality indicators. Based on the obtained results, the perspectives of using the cavitation technologies are affirmed with respect to the oil transportation and the oil refining.

11. Research of well trunk influence on work of sucker-rod pamp (page 104)
Q.H. HAJIYEV
This article is about studies related to the effect of bending degree of directionally drilled well profiles over the pump units of sucker-rod pump method. Dynamometer cards were made for different intervals of wellbore by RIH the pump assembly, also the strain on the suspension point of rods and load on balance arm were calculated. A relationship between stretching tension of pump assembly at a given depth and wellbore bending rate was defined.

12. Results of sidetrack completion of the offshore well “Umid 12” with a large size liner in challenging geological conditions (page 111)
I.Y. SHIRALI
Test results gathered on the offshore well “UMID 12″ will allow minimizing further risks of big financial and time losses in the future, which are normal for drilling of deep sea wells in the challenging geological conditions.

13. Use of waste from ferroalloy plants for production of concrete in factory and monolithic manufacturing (page 117)
L.P. NAGRUZOVA, R.V. POPOV
The article reviews waste of ferroalloy plants – micro-silicon dioxide. Introduction of micro-silicon parts into cement allows receiving concrete of high-strength B 100-120, and also concrete of middle classes, with the concrete economy of 50%. The factory production of ferroconcrete designs with micro-silicon allows lowering TVO by 3-4 hours, thus frost resistance, water tightness, and other properties, both factory production and monolithic increases.

14. Realization of technologies treatment of waste waters in Azerbaijan (page 123)
A.A. MAMMADOV, F.Y. IBADULLAYEV
Modern requirements to the quality of treated wastewater, including biogenic elements lead to the necesity for the construction of new treatment plants, projected under the modern technologies on removal of nitrogen and phosphorus. In actual service conditions the automated maintenance of optimal technological characteristics and modes of operation of facilities is the key for ensuring the project quality of the treated water, provided the correctly selected technological scheme of wastewater treatment.

Jahangir Jalal Asgarov – 65 year (page 131)

Chronicle (page 132)