This paper presents a method of calculating the hydrodynamic radial slide bearing runs on the lubricant that has both viscoplasticity properties. When developing the analysis model as the initial equations the nonlinear Maxwell model with the existence of the limit shear stress. Asymptotic solution of the problem was found in even powers of the parameter due to the presence of limiting shear stress of the lubricant. Found the velocity field and the pressure in the lubricating layer obtained analytical expression for the bearing capacity of the bearing. The estimation of influence of parameters characterizing the elastic properties of the lubricant (the Deborah number) and a dimensionless parameter characterizing the viscoelastic properties of the lubricant parameter (plasticity) on the bearing capacity of the radial bearing.

Keywords: radial bearing, bearing capacity, ultimate shear stress, the parameter of plasticity, deformation

Improvement of technological process of galvanizing in flowing electrolyte without decrease in its reliability and quality of the received deposit can be carried out by carrying out anode etching of the processed surface directly in the main electrolyte of sedimentation. And, providing such conditions of anode etching at which, the details which are formed on a surface products of reactions easily are removed a channel of electrolyte is possible. For the purpose of identification of extent of influence of technology factors on anode dissolution of the processed surface it is necessary to conduct elektrokhikmichesky researches. The installation including electric was for this purpose developed and made and gidravklichesky speak rapidly. The Elektkrichesky part contains power-supply circuits of an electrolytic cell to the asymmetric variables odnopoluperiodno straightened, dvukhkpoluperiodno straightened by current and straightened by current with the lowered pulsation, and also a chain of heating of working electrolyte. The hydraulic scheme of experimental installation includes: the kisloktostoyky electric pump, pipelines, filters, the device for an electrolytic precipitation of coverings and a bathtub with electrolyte. Electrolyte in a cell moved by means of the electric pump. Giving changed in steps, due to change of diameter of the section through passage of the giving pipeline by means of replaceable inserts. Authors of the device for electrolytic drawing coverings are Zakharov Yu.A. and Spitsyn I.A. (patent No. 2155827). The design allows: to increase the speed of a channel of electrolyte; to carry out activation of the cathode, using energy of a channel of electrolyte; to increase the accuracy of copying of the cathode the activating elements; to use higher density of current and to reduce power consumption of the device. Electrolyte, in the course of sedimentation, was constantly filtered. As filtering material used fiber glass. The filter if necessary it is possible to dismantle and wash out quickly. Such filtering element slightly interferes with a channel of electrolyte, is simple in service, is cheap and quite sufficient. Thus, the offered design of experimental installation allows to conduct necessary researches of process of sedimentation of a zinc electrodeposit for its improvement.

Keywords: case detail, restoration, repair, defect, resource way of restoration, car repair production

Studied mobility planar four-link mechanism of the manipulator in a predetermined area of the workspace. A method for determining the maximum rates for selected destinations for the mechanisms of manipulators with motor redundancy.

Keywords: own properties mechanisms manipulators, mobility manipulators, robots for the synthesis of movement velocity vector

There submitted the specification of deformed solid body boundary value problem in polar coordinate system. The problem is transformed to the special integral equation while the solution of this problem permits to define local stresses on the conjugation line nearby its concentration.

Keywords: stress concentrator, elastic body, local stress, boundary value problem, integral equation

Explored the area of space of configurations, defining a set of accessible points of the working area of the manipulator with the position of forbidden zones. For the analytical determination areas used theory of sets and a set of second-order surfaces.

Keywords: synthesis of movement of the robot, the configuration space, restricted areas, intelligent robot control system

The results of experimental studies to determine the optimum frequency of rotation of the drum and the optimum ratios of the mechanical gear Electromechanical actuator gravity mixers. Recommendations on the use of different types of actuators depending on the scope of use of the machines.

Keywords: "gravity concrete mixer, Electromechanical actuator, modular design, experiment, mixing drum rotational speed, induction motor, reducer "

The article analyzes the market of tires used in hybrid automobiles. Presents the results of 2014 the Russian market of tires. Estimated share of Russian and foreign manufacturers, which placed the production in Russia. Examines the import and export of tires in Russia. It is predicted the market situation in real terms.

Keywords: The operation of the vehicle, all-season tyre, wheel, market analysis, import and export of tires

The article developed requirements for the personnel of the enterprises of motor transport. Distinguish the main purpose of the evaluation staff of the service center. Main demotivators efficient staff. Examines the factors affecting the reliability and performance of staff in real working conditions.

Keywords: The operation of the vehicle, staff, road transport, reliability, motivation of staff, failure of the system

The peculiarities of formation of mechanical properties of composite superconducting tyre during its rolling. To determine the intensity of the tangential shear stresses, intensity of deformation and microhardness for all components of the tire of the proposed method of research. The results can be used to determine the power parameters of rolling and determine the conditions of rolling without breaking.

Keywords: The intensity of the tangential shear stresses, the intensity of deformation microhardness

In this paper, taking into account the interactions of the layered conductive lubricant with a solid support surface is given by the method of calculation of the radial sliding bearing with the increased bearing capacity. Here, based on the Navier-Stokes equations, the equation of continuity and the Lame equation for the case of a "thin layer" provides a method of generating an exact self-similar solution to the problem. The problem solution is resulted in identifying the velocity and pressure field in the lubricating layer and subsequently found analytical expressions for the basic performance of the bearing. The estimation of the complex parameters that characterize different aspects of tribosystem, such as the parameter characterizing the layered nature of the lubricant; the supporting surface adapted profile; conductive properties of the lubricant; the electric field and the magnetic induction on the basic performance characteristics of the radial bearing.

Keywords: electrically conductive lubricant, radial bearing, load bearing capacity, stratified flow

One of the criteria for the effective operation of modern machines, machinery, tools and devices is a quiet drive. Research noise generation in mechanical gears is important. A modernization drive with a flexible link, as a method of solving the problem of noise reduction.

Keywords: noise, vibration, drive, machine, mechanism, chain drive, toothed belt drive, a study, a flexible connection

One of the criteria for the effective operation of modern machines, machinery, tools and devices is a quiet drive. Research noise generation in mechanical gears is important. A modernization drive with a flexible link, as a method of solving the problem of noise reduction.

Keywords: noise, vibration, drive, machine, mechanism, chain drive, toothed belt drive, a study, a flexible connection

Scientific findings of developing of patentable products in the area of reforestation work are presented in the article. Functional and technological synthesis is used for developing of patentable products. A development matrix of apparatuses for hand planting of forestry crops is developed in virtue of generalizations of patent databases. A fragment of this matrix is described in the article. Route forward of apparatuses for hand planting of forestry crops are determined in terms of the matrix. The scientific findings are four patentable products which are described with the help of text of claims.

Keywords: Functional and technological analysis, reforestation work, manual equipment for planting of forest crops, seedlings, planting stock

Trend of modern development of machine tools lathe group is the use of multiple tool holders, multi-position turrets. This makes it necessary to determine the radial stiffness in the area of treatment in all possible directions of load. In this paper, we propose a method and a method of control stiffness spindles lathes using load device, which allows to determine the static radial stiffness of the spindle assembly when the direction of the vector load. The load device is a cylindrical mandrel with a conical shank. The mandrel is set in a tapered hole of tailstock quill. The angular position of the load lock device corresponds to the direction of the force. The principle of operation of the device is to provide a radial load on the spindle caused by the elastic deformation of the sliding mandrel load device stops the inner conical surface of the spindle. Mandrel previously spanned. This allows to estimate the radial load created by bending mandrel controlled indicator secured thereon. The dimensions of the mandrel are determined finite element modeling depending on the inner cone of the front end of the spindle and the required radial loads. For the experiment was selected eight positions mandrel: the direction of the force was varied by rotating the load device in the bushing at an angle of 45 degrees. According to the results of the experiment was built hodograph elastic displacement of the spindle. Analysis of the results showed that there is a significant change in the stiffness of the spindle bearings depending on the direction of the load, that is experimentally confirmed anisotropy stiffness bearing spindle assembly.

Keywords: lathe, spindle assembly, rigidity, stiffness anisotropy, load device, finite element method, strain hodograph

In the article the automatic drive positioner technology systems increased speed and accuracy on the basis of multi-parameter sensor rotor (MPMD). The proposed scheme, technical solution (MPMD) with improved integral evaluation of several parameters of positional displacement control objects. The generalized mathematical model of the sensor actuator position struktre. Computational experiments by the Runge-Kutta in the environment of the program Matlab-simulink are obtained depending on the basic parameters of an actuator position. When you perform a typical positional cycle The influence of the major geometric, hydraulic and thermodynamic characteristics of the expiry of the compressed air through the nozzle sensor element on its expenditure-Perepadnaya response. It is found that the maximum deviation does not exceed 5% of the reference sensor. This will improve the accuracy of parameter estimation process of positioning and formation of control actions in real space and time.

Keywords: position pnnevmoprivod, mnogopramatrichesky pnevmomahanichesky sensor, generalized mathematical model of sensor, position cycle, sensor performance

The research of triboelectrization of metal-polymeric contact has been conducted. It was based on the concept of surface states (SS), which represent energy levels on the surface and are the localization centers of the free charge carriers. Thus surface states on a metal are a boundary layer of a chemical compound formed by a metal with the atoms that are included into a composition of atmospheric gases or a polymer. Surface states on a polymer are connected with the fragments of polymeric molecules, appearing in the result of tribodestruction, by the radicals containing unpaired electrons. The investigation shows that a level of electrization of a composite polymer reduces if heteropolar polymers are brought together.

Keywords: surface states, temperature, a value and a sign of tribocharge, reduction of electrization level

The article is devoted to the problem of improving the efficiency of removal of trees and shrubs (cutting and milling) in a continuous movement of forest machines. Brush cutters with active and passive working elements, as well as specialized machines are used for cutting and milling trees and shrubs. These machines have a disadvantage. It is a low reliability in operation. A general layout scheme of machines for removal of trees and shrubs is offered in the article which allows minimizing this problem. The machine has two working bodies: a basic and an additional. The basic working body is for cutting trees and shrubs. The additional working body is for milling stumps and roots and also for mixing pieces of wood with soil.

Keywords: Through workflow, timber industry, trees and shrubs, brush cutter, mower, machine for cutting trees and shrubs

In this paper, based on the Navier-Stokes equations , the continuity equation , taking into account the pressure dependence of viscosity , Darcy equation taking into account the dependence of the permeability of the porous layer of the pressure given by the exact method of forming a self-similar solution of the problem of calculating the hydrodynamic journal bearing operating at three-layer lubricant . As a result, found the velocity field and the pressure in the lubricating layer and the analytical expressions for the components of the supporting forces and friction. Found rational bearing capacity values ​​characterizing different aspects of the functioning of the knot of friction , namely profile support surface ; special lubricating fluid interaction with the surfaces of the friction unit , taking into account the pressure dependence of viscosity ( the formation of intermediate layers with different lubricant viscosities ) .

Keywords: three-layer lubrication, maintenance force adapted profile stratified flow.

The method of coding of the geometrical information is offered at the task of executive mechanisms on the basis of use of the set set of spatial primitive things and their orientation in mobile systems of co-ordinates. The method of a designation of geometrical models of mechanisms of robots is offered. One of advantages of the developed method of representation of geometrical models of kinematic chains, possibility of more exact task of a spatial configuration of manipulators by means of use of a considerable quantity of central points and various position of volume primitive things concerning a constructive plane is.

Keywords: Mechanisms of manipulators, geometrical models, virtual modelling of movements of robots

A new device is offered for the analysis of motor oil contamination of the internal combustion engine with dispersed particles. Optical and ultrasonic methods for analyzing contamination of motor oils are used to obtain more informative data to estimate the concentration of pollutants in the device.  

Keywords: tribomonitoring, electrooptical device, the internal combustion engine, motor oils, methods for analyzing contamination

In the article, the problem of reliability ensuring of bulldozers working at oil and gas objects bases backfill is considered. Typical failures are revealed. Statistical data on time between failures of bulldozers’ elements are obtained. Time between failures distribution regularities of running gear elements and engine are determined. Adequacy of logarithmic normal law of distribution and Weibull’s law is proved. Directions of the received results use are offered.

Keywords: Bulldozers, reliability, time between failures, distribution law, oil and gas objects

In this paper, based on Darcy equations that govern the lubricant in porous layers , and the modified Reynolds equation in the framework of a short bearing solve the problem of unsteady motion of a viscous incompressible lubricant in the bearing clearance double-layer porous . Here we consider the case when the permeability in porous layers in the axial direction is changed by the normal law , and the combined feed lubrication is performed simultaneously in the axial and perpendicular to the bearing axis directions. As a result, the pressure field found in porous layers and in the lubricating layer and analytical dependences for the efforts of the oil film . Compiled by the equation of motion tongue and solved the problem of the stability of the unsteady motion of a pin bearing , found that in the case of a combined bearing lubrication working more steadily compared with the cases or axial directions perpendicular to the axis lubrication . The results obtained can be offered for the development of cylindrical dampers with double-layer porous collar , effectively attenuating transmitted force imbalance in the combined feed lubrication.

Keywords: two-layer porous plug; permeability porous layers, load capacity; equation of motion of the stud; stability

As is known, currently in a model gidrodinaimcheskoy sliding bearing lubricant widely used micropolar lubrication. A major shortcoming of existing working models of bearings running on micropolar lubricant is that this does not take into account the dependence of viscosity characteristics of the micropolar lubricant on the pressure. Naturally, there is a need not only into account the dependence of viscosity characteristics of the pressure in the development of an analytical method for predicting the optimal carrying capacity characteristics inherent MICROPOLAR grease, but also predict the optimal profile of the reference surface of the radial bearing. [1-3 ]Solving this problem is devoted to this work.

Keywords: porous bearing, friction regime, the permeability of the porous layer, the viscoelastic lubricant.

The ability to choose the right anti-wear additives [1-6 ] allows you to create lubricants , which are thin layers have different properties than in large volumes. It is commonly assumed that the additives are functioning only in the zone boundary lubrication and are outside the scope of the hydrodynamic theory of lubrication . However, the beneficial effect of additives as indicated in many studies [1-5 ] we have in the " thin layer" of hydrodynamic lubrication .As is well known , lubrication bearings operate on different types of lubricants which are composed of base oil and additive compositions that provide the required functional properties of the oil . Additives polymers with high molecular weight oils impart viscoelastic properties . Analysis of existing studies [ 7-9] on the calculation of bearings running on a viscoelastic lubricant , shows that they do not take into account the dependence of the viscosity and shear modulus of the pressure and temperature, and mode of friction is assumed laminar. It is known [ 10 ] , high-speed bearings operating in turbulent friction , higher pressure and higher temperature, and so the development of methods for calculating the bearings running on a viscoelastic lubricant requires consideration of the above factors.In connection with the above written shall first develop the computational model of thrust bearings running on micropolar lubricant with the viscosity characteristics of the lubricant on the pressure in contrast to the existing theoretical models do not take into account these dependencies (task 1).And then consider the calculation model of extra load -bearing capacity , working on a viscoelastic lubricant for the dependence of its characteristics on the pressure (objective 2).

Keywords: thrust bearing with the abutment surface adapted, non-Newtonian lubricants

In this paper is offered hydraulic sensor to measure the kinematic, power and energy parameters. Developed scheme and the principles of the hydraulic sensor.  Identification  on the special flow lab with real modes of the device is determined by its performance in different conditions. Approximation of the results received dependences flow and pressure drop characteristics on the speed and entrance pressure, allowed more correctly assess and describe the operation of the hydraulic sensor over the entire range of speed and entrance pressure.

Keywords: hydraulic sensor, spilling method, flow and pressure drop characteristics, multifunction control unit.