A method for the synthesis of the trajectory of the manipulator motion mechanism, based on the use of the field, set permissions configuration in the space of generalized coordinates. Investigated compliance with the provisions of points in space, and the output level of the configuration space.

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

The paper proposes a modification of earlier mentioned method reduces the number of computing operations and improve the accuracy of estimating the phase shift, which is close to the limit set by the Cramer-Rao inequality. The article also presents the results of numerical modeling of systematic and random errors parametric estimation of the phase shift angle of the proposed method.

Keywords: phase shift quasi-harmonic signal, Cramer-Rao lower band, parametric method

In article the task of creation of effective portfolios of securities arising in practical investment activities is considered. Theoretical calculations decisions, necessary for creation of algorithm, are analyzed. It is noted that a basis of calculations is calculation of risk and the expected profitability of both separate assets, and all portfolio in general. For creation of model eight issuers of securities and their real course profitability in ten months according to the Moscow exchange are used. The kovariatsion matrix and a vector of the average income by means of which two effective portfolios are calculated is constructed and the assessment of their profitability and risk is carried out. According to the obtained data the effective border is simulated and displayed graphically. All necessary operations are performed by means of MS Excel.

Keywords: efficient portfolio , portfolio theory , realized a lot of expected revenue , profitability , dispersion, risk , investment , securities , envelope curve , effective border

This article describes a new method to determine the geometrical characteristics of the transverse profile (loop) field loosening that occurs during processing of the formation of the soil system deformers chisel plow. This technique allows you to analyze system deformers Subsoilers all types and versions with a depth of 45 cm by loosening and deeper. Full-scale experiment was conducted in field conditions in the experimental field of the Institute FGBNU SKNIIMESKH Zernograd, Rostov region. Showing a comparative study of different models chisel. The parameters of cutting intrasoil walls necessary for the accumulation of subsurface water on cultivated slopes. Application of a new methodology for determining the area of ​​loosening allow the most qualitative loosen the soil without overturning, create new and improve existing designs chisel various modifications.

Keywords: slope of land, subsurface wall сhisel plow type, region loosening, sample receiver, vaccum system deformers, natural experiment

Complex use of CAD and CAE-technologies for enhancement of a podklinovy outer spring of spring suspension of the three-element cart of the freight car of model 18-100 is offered. As the initial prototype the outer spring, development of JSC NPK Uralvagonzavod was selected. Solid modeling and an assessment of the intense deformed status was executed in the instrumental environment Autodesk Inventor Professional 2015. It allowed to receive more rugged construction of a spring in comparison with a basic spring on condition of saving overall dimensions.

Keywords: the cart of the freight car, podklinovy spring, knot of blanking out of fluctuations, 3d – modeling, strength, durability, working capacity, a frictional chock

This article presents the results of computer simulation of electromechanical phase splitter working at idle mode based on a three-phase induction motor type HVA-55 with squirrel cage type rotor. Simulation made on the basis of previous studies of the auxiliary electric drives onboard of AC electric locomotives. These studies include: the development of a mathematical model of the three-phase induction electric machine that is suitable for describing the dynamics of electromagnetic, electromechanical and thermal processes under unbalance the power supply voltage, and also at not equal parameters at the each phase of machine; the development of computer models of various schemes of auxiliary electric drives of AC locomotives, having in its composition induction motor mathematical model. It has been demonstrated that the selected mathematical model of the induction machine can adequately describe the phase splitting process: the conversion of single-phase AC catenary voltage to three-phase voltage for auxiliary loads feeding.

Keywords: induction motor, mathematical model, electromechanical phase splitter, idle mode, AC electri locomotive, electric auxiliary drive, working capacity, start-up capacity, rotor, stator winding phase

The analytical assessment of change of office properties of heavy-duty details of friction pairs of the cart of the freight car on the first depot repair is presented. The technique of definition of iznos of details of the cart is applied to determination of faults. The most subject are shown to defects nodes of the cart of the freight car.

Keywords: cart of the freight car, frictional wedge, cap of a skolzun, thrust bearing disk, frictional level, wear, wear resistance, defects of the cart of the car

The article presents the results of analyzing patents, aimed at improving the design of jaw crushers and crushing processes using them,conducted in order to establish the technical level of their development.

Keywords: rock, objective tree, crushing, patent, jaw crusher

The article discusses the functioning of the transport system of the city, revealed problems in the development of urban transport and the role of rail transport, barriers and opportunities of using railways in the city for intercity passenger transportation.

Keywords: urban transport, intercity rail transportation efficiency, the organization of transportation, sustainability

Set forth in article method can be used when creating machines with guaranteed safe operation in case of possible large expenses for repairs. In the method used, the transition from selective statistical distributions (strength, loading and resource) to the parameters of the General population of finite volume. Absolute dependability is ensured if the resource (design) of parts and machines will be slightly larger than the first variational value of some aggregate. Approximate calculations showed that the increase in the price of the car is about 30% at absolute reliability of all machine parts.

Keywords: method, security, absolute reliability, safe operation, the totality of the final volume, the minimum design life, the allowable growth rates

Criteria and approaches to the new business choosing for investing and developing being used by contemporary Russian specialists are discussed in the paper. Advantages and shortcomings of different approaches being used in practical management are analyzed. Different approaches used by specialists of different profiles are discussed as well as a two-step method of the new business choosing.

Keywords: business choosing, criteria, investing, business attractiveness, resource capacity

In work design and technological process optimization of hammer crusher chipper production is performed. Replacement of material which the product is made of is executed, and machining volume with formation of a number of detail constructive elements is reduced during receiving preparation stages.

Keywords: hammer crusher chipper, optimization, design, technological process, material, preparation, prime cost, annual economic effect

It is given the interpretation of the primary parameters of conflict obtained by survey (137 people). The studied audience was typical for undergraduate students on basic social characteristics. In the questionnaire the various parties to the cognitive perception of the political order were identified by direct survey. And the emotional relationship to local and Central government were obtained on the technology of semantic differential. The model is based on the results of the parallel hierarchical factorization cognitive components. On the first level 14 of the primary signs reduced to five factors. They characterize the socio-political expectations, declared and real political activity, evaluating the legitimacy of authorities and political situation. These indexes, in turn, on the second level are combined into two independent factors: General cognitive activity and perception of political orders. In the model the indices of the affective perception of these orders (calculated on the basis of the affective section of the questionnaire) were added to them. Two-dimensional histogram of the distribution component matrix for the respondents shows that the subgroup with both highly negative emotional perception and political activity is low (for example, a value of the first parameter -0.4 and below, and the second 0.4 and above is characterized by only 4% of respondents). These respondents represent a risk for the possibility of forming protests.

Keywords: questioning, cognitive component, semantic differential, conflicts, parallel hierarchical factorization, the affective component, matrix, distribution function, multivariate analysis

It is necessary to get a complex integral assessment in object control in different domains. The complex integral assessment is an indicator of problem presence or problem absence in work of control object. It is necessary to get the integral assessment in training control too when there are complex open ended assignments in a training course. In the paper a learning efficiency assessment technique in case of complex open ended assignments is described. It is based on integral indicator assessment using expert methods. The technique was used in the education process in Ufa state aviation technical university during the performance of term papers on the subject «High-level programming». The technique allowed to assess the training course and identified the need for its updating to improve learning efficiency.

Keywords: complex open ended assignment, automated scoring, learning efficiency, efficiency assessment, integral efficiency indicator, indicator convolution, expert assessment method

"This article provides a solution of the plane contact problem with the use of a finite-element method. It presents the algorithms to determine the “node – response surface” contacting pairs through method of minimal penetration of contacting bodies. The article also contains the algorithm of rapid formation of the global stiffness matrix, taking into account the changes of the connections between mesh nodes for each iteration of solving in the Mathcad software."

Keywords: solution of the contact problem, flat stress strain state of the finite element method, Mathcad