Eurasian Physical Technical Journal
http://rep.ksu.kz:80//handle/data/1715
2019-04-20T11:02:35ZOn computation of magnetic fields in closed ring circuits of wind electric power generators
http://rep.ksu.kz:80//handle/data/5192
On computation of magnetic fields in closed ring circuits of wind electric power generators
Kussaiynov, K.; Zhakataev, T.A.
The iterative model which allows on induced electro driving force (e.d.f.) is developed. Of an induction of a magnetic field can to calculate numerical values and to define a profile B(y) in in air gap of the electric car. On the basis of it is possible to calculate streams of a magnetic induction F along a ring contour on a stator. The model allows to calculate forces of mechanical coupling of a magnet (on a rotor) with a ferromagnetic material (on a stator) on the basis of calculation of ponderomotive magnetic volume induced forces. The design of the wind generator on the basis of use powerful disk magnets on the basis of an alloy iron–neodymium–boron is developed.
2014-01-01T00:00:00ZThe research of drag of two-bladed wind turbine in the operating mode
http://rep.ksu.kz:80//handle/data/5190
The research of drag of two-bladed wind turbine in the operating mode
Schrager, E.R.; Tanasheva, N.K.; Turgunov, M.M.; Dyusembaeva, A.; Kussaiynov, Ye.K.
The paper presents the results of experimental studies to determine the drag forces and drag coefficient of two-bladed wind turbine based on the Magnus effect with smooth rotating cylinders in the range of velocities of airflow 4 ÷ 13 m / s. Dependences of drag forces on the flow rate of two-bladed wind turbine with rotating smooth cylinder at the diameter of cylinders is 5 cm,10 cm and the length of each cylinder is 20 cm were obtained. Universal dependences of drag coefficient of two-bladed wind turbine on the Reynolds number at the diameter of cylinders is 5 cm, 10 cm and the length of each cylinder is 20 cm were investigated. The results showed that an increase in Reynolds’ number leads to a decrease in drag coefficient since drag coefficient is directly proportional to the drag force but is inversely proportional to the square value of speed.
2014-01-01T00:00:00ZAnalysis of electrical filters in high level language C + +
http://rep.ksu.kz:80//handle/data/5187
Analysis of electrical filters in high level language C + +
Amochaeva, G.P.; Zakiev, D.M.
Article presents a synthesis system of active electric filters on the basis of its mathematical models provided by linear transfer functions. Each filter is implemented to operational amplifiers, resistors and capacitors. All filter elements are linear, concentrated and invariant over time.The initial data for the synthesis filters are the cut-off frequency response model of dynamic links and angles of inclination to the axis (dB / decade). Initial data for calculation of filters are the nominal values of capacitors stored in the corresponding file. The developed system has the ability to expand at the expense of updating files that contain the concepts of unit cells of active filters and nominal values of capacitors.
2014-01-01T00:00:00ZModeling electromagnetic systems
http://rep.ksu.kz:80//handle/data/5185
Modeling electromagnetic systems
Аikeeva, А.А.; Zhautikov, B.А.; Aydarkhanov, А.М.; Zhanasbayeva, А.S.; Zhautikov, F.B.; Belgibayev, А.S.
The article is devoted to modeling electromagnetic systems which was carried out in a package of the applied ANSYS programs. ANSYS is universal program system of finite element analysis. Modeling and analysis in some areas of the industry allows to avoid expensive and long-lived cycles of development like "projection — manufacture — tests". The system works on the basis of geometric element. Each type of elements uses values of material properties.
2014-01-01T00:00:00Z