SUMMARIES

 

From the president of the international federation for the promotion of mechanism and machine science (IFToMM). “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p.  9-10, (engl. and rus.).

It is stated the content of a letters of the IFToMM’S President, professor K.J. Waldron about the scientific Journal entitled “Problems of applied mechanics”, publishing by Georgia Committee of IFToMM, that was conferred the official International status of the IFToMM. It is shown, that this journal’s publication charted a new way, which will permit change the political and economic work effectiveness of the IFToMM.

 

the synthesis of optimal discrete corrector for thyristor electrical Drive with Elastic Junctions. R. Adamia, J. Dochviri. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 13-15, (rus.).

In the work discrete control of dynamics thyristor  drive is considered. Transmission functions in the z-transformed form of a system is obtained. Via method of LFC optimal corrector that ensure increasing quickness of a system and unoscillations is defined. 2 ill. Bibl. 2. Russ.

 

Equation of motion for 6-Dof parallel structure Manipulator. R. Alizade. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 16-20, (engl.).

Basic dynamic equations for new design of spatial docking manipulator used for space vehicles have been considered in this paper. A new 6xTVTR-type manipulator consists of platform and six branches. Each branch comprises two Hooke’s joints, one helical (screw) and one revolute joints. Dynamic model of this tupe of docking manipulator is described by systems of six nonlinear differential equations of second order with applying the Language-Eiler’s method. 1 ill. Bibl. 16. Engl.; summ. russ.

 

Dynamic analysis for carriage’s hinged-lever system with one-sided press of the shoes with taking into account a friction in kinematic pairs. N. Davitashvili, A. Chkhaidze, A. Sharvashidze. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 21-27, (rus.).

The dynamic investigation of the carriage’s hinged-lever system with one-sided press of the shoes with taking into account a friction in kinematic pairs has been given. The differential equation describing real movement of the entrance link with taking into account dynamic factors has been obtained. 2 ill. Bibl. 5. Russ.

 

For analysis of stationary dynamic movement conditions in system of electric locomotive’s tractive drive. G. Chkhaidze, A. Chkhaidze, T. Mchedlishvili. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 28-35, (rus.).

A system of equations, describing the stationary dynamic movements conditions in the tractive drive is given with regard for the oscillatory process of all system: a railway track – an electric locomotive. The structural scheme of the research dynamic system is created and the total approach to the analysis of a forced motions is formulated on the basis of a method of successive approximations. 3 ill. Bibl. 6. Russ.

 

For the question of modelling of dynamics of regulation systems of transport machines with hydrovolumetrical transmission. A. Tavadze, T. Mchedlishvili. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 36-46, (rus.).

The questions of a modelling of dynamics of the transport machine’s hydromechanical system, included the hydrovolumetrical transmission and the regulation systems of a crankshaft’s gyration frequency and an engine’s work conditions according to the declination of a load moment, are considered. The mathematical models and the structural schemes of the hydrovolumetrical transmission and the system as a whole are created in the convenient form for them following utilization in the method of a research system’s synthesis according to the given transitional process. 3 ill. Bibl. 7. Russ.

 

For modelling of dynamics of dig’s conditions automatic regulation system of transport-excavating machine with bulldozer hinge equipment. A. Tavadze. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 47-52, (rus.).

The description of the research system’s structural features is given. The calculated schem is given and the system of equations, describing a transitional dynamic process, is deduced. 2 ill. Bibl. 9. Russ.

 

Mathematical model of mineral-extractor electrified exploitation system study. M. Baghdasaryan. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 53-57, (engl.).

The questions of mathematical model of mineral-extractor electrified exploitation system study are discussed. Amplitude-frequency and phase-frequency characteristics definition analytic dependences are offered. The dependences allow to evaluate the electromechanical connection degree and to define by in the rational parameters. 2 ill. Bibl. 3. Engl.; summ. russ.

 

Mineral extractor resistant model. M. Baghdasaryan. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 58-60, (rus.).

It is offered to create a mineral-extractor resistent model which considers the occasional character of the process. The processes of resistance moment time function formation and the material quantity in every step are explained. The created model may be used to get electrified engine active power statistic functions. Bibl. 2. Russ.

 

Control of manufacturing process of Ferro-Alloies Pouring. G. Jandieri, A. Kostava. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 61-62, (rus.).

It is determined a condition of speed optimization of ferroalloies pouring and motion of pouring machines mould, in particular a maximum acceptable value, by means of that are receipt calculated analytical expressions. By means of worked out methodology, also it is possible calculation of values, that are necessary for producing of expected thickness ingots. Bibl. 2. Russ.

 

the area of application of induction heating of jobs when cutting high resistant alloys. K. Gvazava, V. Tsotskhadze. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 63-68, (rus.).

Relationship between the parameters of induction heating and cutting regimes (V S t) during pre-heating hot machining were determined by means of theoretical analysis. 3 ill. Bibl. 3. Russ.

 

Peculiarities of heat phenomena in chip contract zone during continuous and interrupted cutting. V. Tsotskhadze, K. Gvazava, M. Silogava. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 69-71, (rus.).

Experimental studies of heat phenomena generated at tool chip interface were carried out; extreme character of the relationship between cutting temperature and cutting speed was explained. 2 ill. Bibl. 2. Russ.

 

Interface temperature distribution during metal cutting. K. Gvazava. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 72-74, (rus.).

Distribution of interface cutting temperature was determined by means of theoretical analysis. 2 ill. Bibl. 3. Russ.

 

improvement of binding process. N. Darbuashvili. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 75-76, (rus.).

The questions of the improvement of a binding technology and automation is considered. With the inclusion of the mechanism, developping on the basis of modern technology, in the selective line permits automatize the process of a piling of a selected complete sets. 3 ill. Bibl. 2. Russ.

 

the Experimental research of volute Gaz-liquid Pump. I. Saghinadze, G. Adamia.  “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 77-80, (rus.).

The experimental model of the volute gaz-liquid pump is projected and made. The tests, for a definition of the maximum pressure, developping by a pump, are carry out. The comparison an experimental findings with a theoretical results, receiving with the before elaborating quasistatic mathematical model of a pump, is showed them good coincidence. 4 ill. Bibl. 3. Russ.

 

Elimination of heeling deformations of nine-storeyed large-panel house in Tbilisi. V. Japaridze. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 81-83, (rus.).

The description of a method of the elimination of a heeling deformations of a large-panel edifice by a hydraulic jack and the practical model its utilization in a building is given. 2 ill. Bibl. 4. Russ.

 

Rise of bearing Capacity of deformed edifices foundations in Tbilisi. V. Japaridze, N. Balakhadze, N. Gheladze. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p.84-85, (rus.).

The description of a method the elimination of a large-block house deformation with a help of the trough-like ferro-concrete slabs and experience of them use, is given. 3 ill. Bibl. 3. Russ.

 

About the solution of nonstationary problems in nonclassical Thermoelasticity. R. Zivzivadze. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 86-89, (rus.).

The algorithm of the leading of the problem of dynamic of the homogeneous body to the solution of stationary problems is given, when the source of heat in the body, the temperature on the surface of the body, the components of the volume force acting upon the body and the components of the given points’ movements on the surface of the body are polynomial to time. Bibl. 2. Russ.

 

Automated system of definition of work-piece manufacturing’s and assembly’s optimal technology. G. Bokuchava, T. Gegechkory, D. Jorjoliani. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 90-94, (rus.).

The methodology of the working out of automated system of the work-piece manufacturing’s and assembly’s optimal technology est given. 2 ill. Russ.

 

the nuclear electric Engine. H. Tsulaia. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p.95-95, (engl.).

In article there is considered the basic opportunity of efficiency increase of rotary electric engines by use of an atomic energy on a basis of ferromagnetic resonance in ferromagnetic materials. At consumption of small energy of a constant current on the target shapt of the electric engine it is possible to receive the large twisting moments. 1 ill. Engl.; summ. russ.

 

Wear of shaft surface on account of the contact interaction with bung. U. Hasanov.  “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 96-100, (rus.).

The method of defining of the wear of shaft surface of account of the contact interaction with the bung is given in the work. The deformed statement and wear of the contact pair bung-shaft is described. The shaft-shift on the account of microroughness of its surface is determined. The adding solution of the task at the equilibrium of the shaft is defined. The determination of the contact pressure leads to the solution of non-linear integral equation. Bibl. 6. Russ.

 

Calculation of the stiffness matrices for the shells of rotation of multiconnected shell construction. I. Shioshvili. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 101-102, (rus.).

In this work the method of approximation of determining the stiffness matrices for the shells of rotation (annular plate, conical, cylindrical and spherical shells) has been developed. There were thoroughly examined the points of view of the determination of its characteristic, accuracy and sphere of applicability, that does not make it possible to present explicitly the work of the method on real constructions. 2 ill. Bibl. 2. Russ.

 

the temperature problem of thin shells of rotation. I. Shioshvili. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 103-107, (rus.).

In this work the temperature problem of the thin shells of rotation has been considered. It is given the analytical form of writing for the temperature terms being added to the components of surface load in the resolving equations written down through the displacements. Bibl. 2. Russ.

 

the New classification of large deployable antenna reflectors. L.Datashvili. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 108-110, (engl.).

In the presented work the new classification of large deployable space antenna reflectors is given. The classification is based on the kind of distribution of the mass (stiffness) of the reflector structure framework and greatly simplifies the process of the reflector design trend selection. 2 ill. Bibl. 9. Engl.; summ. russ.

 

Mathematical model of sediment transport at Black Sea coastal zone of Poti region (Model and Algorithm). I. Saginadze, A. Bregvadze. “Problems of Applied Mechanics”. Tbilisi, 2002, ¹1(6), p. 111-115, (rus.).

In above work is presented mathematical model of sediment transport at Black Sea coastal zone of Poti region. In the base of final element’s method, worked out numerical settlement algorithm of problem. 1 ill. Bibl. 7. Russ.