Improvement of the organizational-economic mechanism of resource-saving at the machine building enterprise

The characteristic of the resource-saving at the machine-building enterprise has been presented. The complexity and system of the resource-saving control, as well as reasonableness of the development of the efficient organizational economic resource-saving mechanism have been interpreted. It was testified that the basis of the successful activity strategy in the resource-saving at the local machine-building enterprises is the efficient application of the available resources according to the requirement of the manufacturing products. Efficiency of such control can result from the proper application of the resourcenomy levers as a new science. Innovation chain of investigation of the resource-saving control problems from the point of view of resourcenomy has been proposed. Determination of the most efficient ways of setting up the organizational economic mechanism of resource-saving basing on the qualitative and quantitative factors of the resources application, using the resourcenomy techniques and taking into account the possibility to provide the enterprise with technologies, staff, control system, as well as the influence of each of the factors of the outside and inside environment of the enterprise, has been presented

The impact of the kinematic parameters of bounce and pitch motions of sprung mass on wheeled vehicles handling

The impact of the kinematic parameters of bounce and pitch motions of wheeled vehicles’ (WVs’) sprung mass (SM) with non-linear power characteristics of the cushion system on vehicles handling is studied. The dependence of the critical value of the dynamic steering angle of directive wheels on the amplitude of bounce and pitch motions and the kinematic parameters of motion is developed. It is proven that the limit value of the dynamic steering angle of directive wheels is reduced during acceleration, and vice versa (it increases during braking, while the bounce and pitch motions are significantly reduced)

Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Studies of the formation of the optimal composition of Tribological additives to the base oil have shown the possibility of improving the characteristics of the tribosystem. It was revealed that this Tribological additive makes it possible to form functional surface layers that provide normal operating conditions for tribological conjugation of parts. Based on the optimization of the technical condition of the Tribological additives, the optimal values of each of its components are obtained. Optimization of the condition provided that the amount of wear should tend to a minimum, and the maximum load and loading of the weld should tend to a maximum. Based on the experimental database on the 4-ball friction machine, an equation is obtained for each of the indicated response functions of the resulting features, based on which, with a desirability value of the order of 1.0, the composition of Tribological additives is obtained: from Katerynivka Friction geo modifiers; Sodium oleate, copper sulfate and phosphor TAT 33. It was found that the adding of TM-3-18k into the oil Tribological additives in the amount of 5.75% under laboratory conditions can reduce the wear rate by 35.1 – 35.5%, the maximum load also increases by 17.1 – 17.2%, and the welding load increases by 5.3 – 8.4%. The analysis of experimental data shows that this Tribological additive can be operated at locally loaded parts of 1035 N, and the peak contact overload is up to 2385 N. The research results suggest that the proposed Tribological supplement makes it possible to improve the characteristics of the tribosystem. It can be useful to service and trucking enterprises during technical service and for the manufacturing of composite oil

Intelligent transport systems in the context of resource saving

Интеллектуальные транспортные системы обычно рассматриваются как базовая технология для постоянного снижения дорожно-транспортных происшествий и повышения эффективности трафика. Согласно исследованию, существующие интеллектуальные транспортные системы не только обеспечивают значительное сокращение выбросов парниковых газов, экономию топлива, время проезда, но и не маргинализируют мобильность граждан.Intelligent transport systems are usually considered as a basic technology to continuously reduce traffic accidents and increase the efficiency of traffic. According to the study, the existing intelligent transport systems not only provide a significant reduction in greenhouse gas emissions, fuel economy, travel time, but also do not marginalize the stability of citizens

Resonant oscillation of vertical working part of conveyer-loader

The experimental equipment for testing the screw loader of bulk materials with horizontal and vertical branches was designed and manufactured, which allows to determine the process productivity and power consumption according to the developed methods. Experimental equipment is equipped with laboratory equipment, which ensures the change of investigated processes in wide ranges with high accuracy in the automated control mode with the fixation of necessary research results. On the basis of mathematical models, the dependences of the angular velocity of perturbation on the physico-mechanical and geometric parameters of the system of branches and the angular velocity of SWP are obtained. It was established that the resonance dynamic stresses at significant angular velocities exceed several times the resonant stresses of a «static elastic body» (which does not rotate), which makes it possible to take into account when choosing a dynamic coefficient of strength. With the same physical-mechanical and geometric characteristics of an elastic body, the resonance for larger values of the angular velocity of its rotation takes place for a smaller frequency of external periodic perturbation

Dynamic Effect of Cushion Part of Wheeled Vehicles on Their Steerability

The effect of relative motion of cushion system on dynamic pressure force of steered wheeled vehicles with non-linear elastic characteristics of suspension was evaluated in the article under consideration. The problem is to find the dynamic force of system cushion-non-cushion part pressure on front wheel. The dependence for the limiting value of dynamic turning angle of steered wheels on longitudinal-and-angular oscillations amplitude and parameters describing elastic characteristics of elastic suspension was obtained. It was demonstrated that for more rigid suspensions the value of dynamic turning angle is smaller at small amplitudes of longitudinal-and-angular oscillations and bigger at big amplitudes of longitudinal-and-angular oscillations

Torsional oscillations of an auger multifunctional conveyor’s screw working body with consideration of the dynamics of a processed medium continuous flow

Introduction. The aim of the article is a mathematical model of vibrations of working part of screw conveyer for transporting friable loads taking into account the changes of closeness of the processed environment, speed of circulation of screw, weight while appearing of the phenomenon of resonance. Materials and methods. It is recesrced the turning vibrations of spiral working part of screw multifunctional conveyer, which appeare as a result of action of processing environment. The recerch was carried out by mathematical modelling method. Results and discussions. The limiting factors which complicate a design are the unevenness of the division of environment along the length of screw; a body makes flexible vibrations; the motion of the processed environment along the working screw causes the small vibrations of bend, causes appearance of “additional forces”. For providing the authenticity of mathematical model ti has been introduced the next suppositions: the working part of screw is turned with the permanent angle speed around its longitudinal which in the undeformed position coincides coincides with an axis OX; the transversal transferring of neutral axis of working screw at the arbitrary moment in perpendicular direction of its undeformed position is determined by the vector (in relation to the fixed frame of reference of OXYZ); the continuous stream of processed environment,while its weight changes on unit length slowly along a screw and moves with permanent relative (in relation to working screw) speed. A mathematical model takes into account the limitation and supposition for the existent screw conveyer with the length of 2,5 and 3 m, which is used for moving the friable loads with the consistence of 10, 20, 40 kg/m. The alternative parameters are the length of the screw,the consistence of the processed environment, the speed of circulation ofthe screw , weight On the basis of model the dependences of amplitude of vibrations on the lengthof screw , cosistence of the processed environment, the speed of circulation of the screw, weight are built. Conclusions. A mathematical model allows to improve the process of development and designing of the screw conveyers of the friable loads providing the reliability of process of transportion and system “the processed environment – the screw working part”

Features of organization and technical support of transportations for separate classes of dangerous cargo by automobile transport

В статті подано перелік основних нормативно-правових актів, що здійснюють регулювання у сфері перевезення небезпечних вантажів. З метою гарантування належного рівня безпеки під час перевезення небезпечних вантажів з використанням автомобільного транспорту обґрунтовано особливості організації і технічного забезпечення перевезень вантажів першого, другого та третього класів. Систематичне виконання правил та норм при здійсненні перевезень різних класів небезпечних вантажів дозволить знизити аварійність на автошляхах підвищити безпеку руху та надійність технологічного процесу транспортування в цілому