Morozov N.A., Vlasov Y.L., Gavrilov A.A.
OPTIMIZATION OF PARAMETERS OF COMPOSITE COVERINGS DRY COMPARTMENTS OF AIRCRAFT BY MEANS OF NASTRAN ^{[№ 9 ' 2015]}
The researches devoted to minimization of mass of aircraft will never stop being the actual. Decrease in weight allows to lower costs of production of the aircraft, to reduce the dynamic loadings arising when transporting and in the course of its flight and also to reduce amount of fuel, necessary for flight. The purpose of receiving the covering providing the greatest coefficient of a stock of the general stability and the maximum durability of a compartment on condition of minimization of its weight was set. Researches were conducted by modeling of the intense deformed condition of coverings by means of a method of final elements in Nastran. For research the layered model consisting of variously reinforced layers of composite material of the set thickness was used. As a result of calculation on durability and stability of various coverings it was established that optimum schemes of laying of four-layer coverings are the schemes having the inside layers (the closest to a longitudinal axis of a compartment) reinforced under angles and the external layer reinforced at an angle. Lack of distinction in stability and durability of coverings in case of mutual change of places of the layers reinforced under angles provides possibility of replacement of these two layers with one orthotropic layer. When modeling dry compartments of aircraft the preference needs to be given to the four-layer coverings having the scheme of an arrangement of layers (45, –45, 0, 90). Influence of change of quantity of four-layer packages of layers of a covering on its durability and stability was investigated, thus thickness of a covering was accepted by the invariable. It was established that distributions of tension and the maximum tension arising in coverings are identical, and the coefficient of a stock of the general stability increases with increase in number of packages of layers. And, the essential increase in coefficient of a stock of stability occurs only when using two packages of layers therefore when modeling coverings from bigger quantity of packages of layers it is recommended to use technical and economic calculations.

Gavrilov A.A., Morozov N.A., Vlasov U.L.
METHOD OF CALCULATION OF NATURAL FREQUENCY FOR CRANE BEAMS ^{[№ 1 ' 2015]}
This article describes a developed method analytical calculation of natural frequencies of suspended overhead cranes taking into account the changes of the middle surface of the bending and restrained torsion. Accounting changes the middle surface leads to the calculation scheme less rigid design and brings it to the real object. The analytical expressions for determining the values of the natural oscillation frequencies of one– and two-span crane beams. Compared the values of natural frequencies obtained by the developed method, with the finite element analysis using APM WinMachine and Autodesk Inventor. It was revealed that the discrepancy between the results of the calculations do not exceed 3% for the flexural vibrations and 10% for torsion, due to the lack of consideration of internal friction. It was found that the frequency of forced oscillations crane beams are quite close to their natural frequency. This allows the use of the resulting technique to eliminate the possibility of resonance in the construction crane beams and their elements.

Gavrilov A.A., Vlasov Y.L., Morozov N.A.
DYNAMIC MODEL OF RELATIVE BALANCE OF LIQUID IN THE TANKER AT UNIFORM MOTION ON THE CURVILINEAR SITE OF THE ROAD ^{[№ 10 ' 2014]}
The model of relative rest of liquid in tanker partially filled with liquid is developed at movement on a curvilinear site of the road, considering inertness of liquid. The equation of a free surface of liquid in a tanker is received. Coordinates of the center of mass of liquid and dependence of forces of inertia of liquid on the speed of a tanker, volume of the liquid filled in in it and the radius of curvature of turn are determined.

Gavrilov A.A., Morozov N.A., Vlasov U.L.
ESTIMATION OF THE STRENGTH OF THIN-WALLED RODS AT FLEXURAL VIBRATIONS USING A FICTITIOUS LOADS ^{[№ 1 ' 2014]}
The technique of estimation of the strength of thin-walled rods, performing free flexural vibrations. This method allows to determine the fictitious loads acting on the rods are in the process of vibrations, and data loads to carry out calculations the strength of static rods.

Vlasov Y.L., Morozov N.A., Gavrilov A.A.
DYNAMIC MODEL OF UNIFORM TRAFFIC TANKERS WITHOUT CROSS SEPTA WITH A PARTIALLY FILLED ^{[№ 9 ' 2013]}
A model of sustainability tank partially filled with water in the curved section of the road. The dependences of the coefficients of stability of the car on the volume of fluid and coordinates of the center of mass of liquid in the tank.

Khlystov A.I., Vlasov A.V., Konnov M.V.
THE USE OF HIGH ALUMINA SLUDGE IN THE TECHNOLOGICAL PROCESSES OF PRODUCTION KILN AND ROASTING FREE REFRACTORIES ^{[№ 5 ' 2013]}
Research of influence of addition of nanotechnogenic high-aluminous sludge on forming of structure and properties of the roasting free refractories (heat-resistant concretes) and roaster materials.

Ivanova T.A., Vlasova G.A.
FORMATION OF SCIENTIFIC WORLD PICTURE OF SCHOOL CHILDREN STUDYING "DERIVATIVE" TOPIC ^{[№ 2 ' 2013]}
In the article the structure of philosophical knowledge in "derivative" topic is marked out; problems and purposes of learning the differential calculus in mathematics at school is described; historical facts of establishment and development of differential calculus, which may be used in learning mathematics to form a correct scientific world picture of schoolchildren.

Bocharov I.A., Vlasov Yu.L., Rassokha V.I.
MODEL OF DEFINITION THE OPTIMAL NUMBER OF ROUTE PASSENGER VEHICLES ^{[№ 10 ' 2011]}
The article analyses used earlier mathematical models and proposes a new model for determining the optimal number of route passenger vehicles, which is a function of four indicators the efficient functioning of urban passenger transport system depends on.

Vlasov Yu.L., Morozov N.A., Bocharov I.A., Gavrilov A.A.
EFFECT OF DISPOSITION OF CARGO IN THE TRUCK BODY ON THE STABILITY OF THE CAR IN TURNS ^{[№ 4 ' 2011]}
The dynamical model of a laden truck in the turns, taking into account the asymmetrical arrangement of the cargo relative to the car body and tilts the car body is regarded in this paper. The dependence of the coefficients of stability of the car from the center of mass coordinates of the goods is determined.

Vlasov Yu.L., Rassokha V.I.
MODELING OF DEMANDS ON DIFFERENT TYPES OF PASSENGER CARRIERS ^{[№ 6 ' 2006]}
The methods of passengers’ demand determination on different types of passenger carriers, allowing optimally arrangement on routes of existed carriers with aim of maximal profits getting in conditions of more completed satisfaction of passengers’ demand, are worked out in this article.

Bukharin O.V., Chainikova I.N., Smolyagin A.I., Valyshev A.V., Perunova N.B., Vlasova E.V., Kalinina T.N.
CHARACTERISTICS OF LOCAL BOWELS IMMUNITY AND MICROBIOCENOSE OF PATIENTS WITH SALMONELLOSIS INFECTION ^{[№ 5 (app.1) ' 2005]}
It was revealed that evident numerical and qualitative damages of microbiocenose condition of thick bowels of patients with salmonellosis are accompanied with synchronous change of local immunity characteristics in coprophiltrates and saliva.