SUMMARIES

The Dynamic investigation of four-link spherical slider-crank
mechanisms with loosenesses in kinematic pairs with taking into account
supplementary and principal motions of a mechanism. **N. Davitashvili, A.
Talakvadze. **"Problems of applied Mechanics". Tbilisi, 2001, ¹1(2),
p. - (rus.).

The dynamic investigation of four-link spherical slider-crank mechanisms with loosenesses in two kinematic pairs has been carried out considering not only supplementary motion in the field of loosenesses, but also principal motions of mechanisms. Sixteen differential equations, describing these motions, have been obtained. Ill.3, bibl. 6.

The common method of definition of bending tensions arising
in links of kinematic chains. **D. Tavkhelidze, I. Bochorishvili, Z.
Mchedlishvili. **"Problems of applied Mechanics". Tbilisi, 2001, ¹1(2),
p.- (rus.).

Using the method dynamic rigidity that based on replacement of system with the distributed parameters by system with final number of degrees of freedom in the work calculated the bending deformations of the links of multi degree freedom of plain lever mechanism. The offered method allows to investigate also other different type of deformations for spatial mechanical systems. Ill.1, bibl.1.

To research of dynamics of draft of a drive of the
locomotive. **G. Chkhaidze, A. Chkhaidze, T. Mchedlishvili. **"Problems
of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The mathematical model of dynamics of a drive of the second class is considered, the analysis is carried out. The necessary mathematical laws are revealed and the multicoherent block diagram is constructed the general approaches to the subsequent dynamic researches are formulated. Ill.2, bibl.8.

The investigation for dynamics of performing unit of braking
of wagon’s brake lever transmission with unilateral press of shoe. **N.
Davitashvili, G. Sharashenidze, A. Sharvashidze. **"Problems of applied
Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The dynamic investigation for performing joint lever mechanism of wagon, with taking into account the loosenesses in kinematic pairs, has been given. From general system of lever transmissions there is singled out plane four-link crank-and-rocker mechanism with the loosenesses in two kinematic pairs. Aiming at optimal choosing of loosenesses’ size and at reliable work of mechanism and performing unit, the supplementary motions have been investigated. Ill.2, bibl.7.

Kinetostatics of Spatial Multibody Mechanisms. **R. Alizade,
I. Mamedov, A. Temirov. **"Problems of applied Mechanics". Tbilisi,
2001,** ¹1(2), p.- **(engl.).

The paper is dedicated to the kinetostatical analysis of the spatial mechanisms and parallel structure manipulators on the base of screw theory with taking into account the clearances and frictions in the kinematical pairs. Ill.6, bibl.3.

The definition of natural frIquences of six link leveR
mechanism by using the method of dynamic rigidiDty. **Z. Mchedlishvili.**
"Problems of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The work is devoting to the determination of the natural frequencies of multi link plain mechanism by using the method of dynamic rigidity, which amply the replacement of system with the distributed parameters by system with final number of degrees of freedom. The offered method allows to investigate also the spatial mechanical systems. Ill.2, bibl.2.

Geared Variators. **R. Varsimashvili.** "Problems of
applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The creation of ellipsoidal gear drive providing motion transfer with variable velocity ratio is considered. The diagrams of some feasible variator drives with ellipsoidal gear wheels are presented. Ill.8, bibl.3.

Forming of metal when upsetting the specimen under the
ringtype deformable gasket. **I. Kharebava, G. Zirekidze. **"Problems of
applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The comparative pattern of gasket effect of various construction on the deformation irregularity is given when upsetting the cylinder specimen. A method is offered to determine the proportionality factor and nomograph to determine the volume more exactly formed by the revolution of the arc of a circle about the specimen axis. Ill.5, bibl.3.

Investigation of the nature of shock wave of action of
interface. **J. Bakhtadze, G. Metreveli, M. Tsikarishvili, B. Churchelauri.**
"Problems of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The process of shock wave action on elastic interface at laser microexplosion is given. The analysis of hydrodynamic process is presented. Boundary value conditions for quasistatic state of liquid are derived. Ill.3, bibl.5.

Adaption of "The hit Theory" to a working process
of the cutting of tea bushes. **R. Makharoblidze, Z. Makharoblidze. **"Problems
of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The process of the cutting of tea bushes is analyzed by "The Hit Theory" method. The hit-cutting power is determined by the parameters of working organs and vegetable materials. Ill.2, bibl.5.

On the calculation of Tractor Equipping of Farms. **N.
Gabunia, N. Pkhakadze.** "Problems of applied Mechanics". Tbilisi,
2001, ¹1(2), p.- (rus.).

With due regard of positive experience of farms of the advanced countries of the world schedules are presented and empirical formulas of the farms’ equipping with tractors are calculated depending on the area of tillage throughout the whole operating range up to 1600 ha of the cultivated land. Ill.2, bibl.5.

Optimization of exploatation parameters of combine seeding
machine. **D. Natroshvili.** "Problems of applied Mechanics".
Tbilisi, 2001, ¹1(2), p.- (rus.).

It’s considered the question of sowing of arable cultures with the help of combined machine. It’s used the method of planning experiment for receiving regresive equation of technological process and optimal parameters of machine. Ill.1, bibl.2.

About conservative eigenvalues of linear oscillatory systems
with finite number of degrees of freedom. **A. Mylnikov. **"Problems of
applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (engl.).

A simple method of separation of eigenvalues for systems of finite number of freedoms is discussed. Connection between eigen values of separate impedance and k-loops circuit are determined. The conception of i-conservative proper frequencies are introduced. It has been shown that eigen values whose multiplicity is greater than the number of false n-k loops are. bibl.3.

Tensorial model of oscillation systems with high number of
degrees of freedom. **A. Mylnikov, R. Partshaladze. **"Problems of
applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

Tonsorial model of oscillation systems was created. It was shown that currents and voltages can be considered as contravariant and covariant vectors correspondingly, and kinetic and potential energies-as bilinear forms. Invariance of power for kronian transformations has been proved. bibl.6.

Energetical account of tea leaf rolling in Roller. **B.
Dolidze.** "Problems of applied Mechanics". Tbilisi, 2001, ¹1(2),
p.- (rus.).

Energy expenditure of tea leaf rolling on the roller is stufied on the base of theoretical and experimental researches. An engineer method of catenation the tea leaf rolling energy loss was worked out. This method gives possibility to reseive optimal technological and con-stractive parameters with quatity of finished product in view. Ill.1, bibl.2.

Mathematical modelling of tea leaf rolling process in the
ROLLER OF SINGLE ACTION **B. Dolidze, S. Guruli, L. Kutateladze. **"Problems
of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

Movement of tea leaf an the roller is studied in this article. The parameter is establishen on the base of this study. It is called rolling angle. Rolling cintensivity chandes by the changing of the rolling angle. On the base of theoretical and experimental research determines the dependence of rolling guality upon the technologies and constructive parameter. Ill.1, bibl.4.

THE DEVICE FOR ELIMINATION OF THE FATIGUE OF A RAW SILK
THREAD. **G. Jokharidze, N. Machavariani, N. Idadze, V. Tarkhnishvili. **"Problems
of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The device against the fatigue of a raw-silk thread. In this paper, the device against the fatigue of a raw-silk thread has been elaborated. The obtained results eliminate negative factors which deteriorate the thread’s quality. Ill.3, bibl.5.

Importance of jamming at cylinders pairing in specific
temperature conditions. **T. Batsikadze**. "Problems of applied
Mechanics". Tbilisi, 2001, ¹1(2), p.- (engl.).

The value of jamming is determined at pairing of different material cylinders in specific temperature conditions. An example is considered when the external cylinder is made of steel and the internal one – of Inver. The value of critical pressure is estimated. Ill.3, bibl.6.

Analysis of hierarchical systems by means of incidence
"Weighted" matrix. **M. Akhobadze, D. Kiguradze**. "Problems
of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (engl.).

The quality of the systems’ functioning is defined not only by physical parameters but also its geometrical structure which has been studied using apparatus of the combinatorial topology. For the case of the so called incidental "weighted" matrix of Q-analyses is shown how an interaction is expending in the chain with many entities.

On the model of a weak unisotropic material. **Z. Arkania,
I. Matchenko, G. Shelia**. "Problems of applied Mechanics". Tbilisi,
2001, ¹1(2), p.- (rus.).

By introducing the field of generalized strains the class of unisotropic media, related to a weak unisotropic, has been broadened. bibl.1.

Concrete hardening through the numerously repeated vibration.
**S. Pantskhava, B. Keshelava, N. Burjanadze**. "Problems of applied
Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

In order to harden concrete and improve its characteristics method of hardening by means of the numerously vibration is used. This method is used indefinite days that conforms to the moment of hydration suspension. Using of this method increases concrete durability by nearly 10%, in comparative with concrete prepare by heat-wet method. Ill.1, bibl.6.

Methods of analysis of the information at construction expert
system of educational process. **G. Maisuradze, S. Pochovian, O. Shonia**.
"Problems of applied Mechanics". Tbilisi, 2001, ¹1(2), p.- (rus.).

The methods takes us the construction of analysis, of expert system, of educational process for the first time. This method based on the rules of knowledge. The system allows us an information to form and to modify rules, information of a subject domain and also in a course of dialogue and reasoning to give out the appropriate authentic facts educational process. bibl.4.

Task of acceptance of the decisions in organizational
systems.

**S. Pochovian, O. Shonia**. "Problems of applied Mechanics".
Tbilisi, 2001, ¹1(2), p.- (rus.).

There is considered (examined) the basic types of tasks, of acceptance in organizational systems, basic restrictions, choice of set of actions are considered (examined) in clause. The questions of definition of the purposes and status of system on levels of system and also on all periods are considered (examined). bibl.3.