Alexander Taratorkin

This study is one of the stages of research work to create a verified mathematical model of a promising automatic transmission of a truck, which should adequately describe its vibroacoustic behavior during operation. The article presents the results of an experimental study and simulation of the vibration behavior of a promising automatic transmiss...

The article provides a rationale for the need to develop an additional braking control system for a transport vehicle to limit the movement speed under the action of rolling forces and to protect the engine from exceeding the permissible speed, “overshooting” the speed. Design options for four systems that dissipate kinetic energy are considered, a...

There is a global tendency nowadays in the development of transport vehicles to ensure high safety, energy efficiency and comfort, characterized primarily by ergonomic and vibroacoustic indicators. This forces engineers and scientists to constantly strive to reduce a noise level emitted by both the vehicle as a whole and individual units and system...

The article presents the results of a computational and experimental study of the dynamic loading of the transmission of a transport vehicle with an increased power diesel engine. The novelty of the study is substantiated in the scientifically based applicability of elastic torsion shafts between the engine and transmission as a torsional vibration...

This paper examines the results of a research of off-design loading modes of road rollers of tracked vehicles. An additional load is formed by parametric resonant oscillations of the road rollers that arise when driving on a low-deformable support surface. To solve the problem of eliminating resonant oscillations, a mathematical model of a dynamic...

The aim of the work is to substantiate a computational and experimental method for determining the parameters of the non-holonomic interaction between a caterpillar drive and a supporting base, the parameters of which introduce a nonlinear stochastic character. Methods for determining the kinematic parameters that characterize the trajectory of the...

The paper provides an analytical review of modern methods to optimize dynamic and vibroacoustic parameters of prospective power units of transport vehicles. To solve this problem, it presents a unified algorithm for low-frequency and high-frequency bands applying an analytical and experimental approach. The novelty of the approach lies in the imple...

Introduction (problem statement and relevance). Testing the vehicle automatic transmission and shifting gears without interrupting the power flow undesirable dynamic phenomena were revealed. The occurrence of “parasitic” centrifugal pressure in the clutch boosters was observed which resulted in self-activation of the control element, clamping the d...

A kinematic diagram of an electromechanical transmission of a high-speed tracked vehicle with two traction electric motors, on-board gearboxes and a ZK-type differential turning mechanism, which makes it possible to effectively distribute power flows between the sides during curvilinear motion, is proposed.

The paper presents a method for predicting dynamic and vibro-acoustic loading based on a dynamic system modal representation. The method consists in determining modal parameters (natural frequencies and eigen forms, damping coefficients) knowing frequency characteristics, calculated either by using mass distribution, stiffness and damping matrices...

There is a research study of the dynamic properties of water jet drives designed both for different high-speed tracked amphibious vehicles types and for various loads. It is within the framework of the problem solving of dynamic loading decrease of high-speed tracked amphibious vehicles water jet drives. To achieve this goal, a mathematical model w...

Mobility operation of an unmanned transport vehicle (UTV) when operating on rough terrain is a difficult task. The most difficult is the problem of the tracked UTV motion. Simplification of the controlled motion simulation, ambiguity of the track – terrain interaction parameters, the random nature of external impacts lead to fuzziness of the status...

The analysis results of dynamic loading of the amphibious vehicle’ water jet drive are presented, the hypothesis about the durability limitation of the drive due to the onset of resonance forced and parametric oscillations is advanced. Solutions of that problem are justified.

This paper presents the results of a theoretical and experimental study of the vibro-acoustic radiation of the mini loader (MKSM-800), and analyzes the variant of reducing the noise level both of the loader on the whole and of its specific structural components. It estimates the vibro-acoustic activity of an internal combustion engine (ICE), includ...

The article describes a refined method for design studies of friction disks that are integrated into automotive transmissions. A technique is presented to enable finding the natural frequency spectrum exhibited by disks as distributed mass multicomponent bodies. Grounds are given that explicate the necessity to evaluate the stability of oscillation...

The paper shows results of an experimental and theoretical study of dynamic processes in the vehicle transmission after kinematic alignment of elements during gearshifts. The purpose of the research is increasing the quality of transient processes in the vehicle transmission. Applying an analysis of experimental results obtained through looking int...

Purpose It is known that low-frequency torsion oscillations in the transmission, corresponding to the first one-node Eigen mode, are observed in the transient processes of starting from standstill and gear shifting. The power of these oscillations is sufficient to excite the longitudinal oscillations of the vehicle body (up to 2 ... 4 m/s²). Theref...

The paper presents the results of an analytical experimental research of conditions for excitation of oscillatory processes in steady-state conditions and in the process of starting-up an engine equipped with a modern Common Rail fuel supply control system. Based on the results of mathematical simulation, the dependence of the dynamic torque amplit...

One of the main sources of vibroacoustic emissions is the transmission of a transport vehicle. Providing a high level of fuel economy performance and an acceptable level of power-train noise and vibration (NVH) is a complex engineering task and a real professional challenge for NVH specialists. The purpose of the research is to provide the required...

The wide use of the finite element method for the strength analysis of the undercarriage elements requires a reliable method of the load's calculation. Conventional analytical method of the load's calculation does not take into account their redistribution due to the kinematics and dynamics of the elements. An alternative option is the numerical dy...

This paper investigates stability of the dynamic process of gear shift in the vehicle transmission with the input shapers (IS) taking in consideration uncertainty of the natural frequency of the mechanical system. The proposed control algorithm increases the stability of the researched system with variation of its elastic and inertial parameters. T...

The analysis results of dynamic loading of the amphibious vehicle’ water jet drive are presented, the hypothesis about the durability limitation of the drive due to the onset of resonance forced and parametric oscillations is advanced. Solutions of that problem are justified.

The paper studies formation of the power-train elements dynamic loading at engine starting, shows the results of experiments and of simulation modeling and substantiates the ways of reducing dynamic loading of the mechanical system under study.

The paper describes the results of poorly studied interrelated unstable oscillations of friction disks – lateral thermoelastic oscillations perpendicular to the disk plane and parametric oscillations in the plane of the disk.

The article presents the rationale for improving the quality of transients during steering control of a tracked vehicle in order to increase its high speed performance. Based on the comparative analysis of the results of simulation modeling and experimental research of the controlled movement dynamics, it is established that high speed performance...

The paper investigates kinematic and power parameters of the tracked vehicle movement trajectory at transition processes of changing the direction and slipping of the caterpillar track. The main parameter that determines the space position of a tracked vehicle is the position of the longitudinal axis, and the deviation vector angle of the absolute...

The paper gives a brief description of a method for predicting dynamic friction disc loading in transport vehicle transmissions due to the occurrence of parametric resonance oscillations. It describes a method for the calculation and experimental determination of the modal characteristics of friction discs. It offers some ways of filtering parametr...

The article solves the problem of modeling of a nonlinear control system of motion of high-speed caterpillar machine using the algorithms of filtering. The main feature of the paper is the use of different shaping-filtering algorithms, which set the influence of driver and speed identifier. Special attention is paid to the analysis of transient pro...

The research is devoted to forecasting resonances of metal-ceramic disks (MCD) of transmission frictional elements for transport vehicles and determining the ways of increasing useful life. The analysis of the nature of destructions allowed for putting forward a hypothesis about MCD destruction due to the high-frequency resonance oscillations gener...

The article provides a rationale method for stabilizing thermal stress in tires of vehicles track rollers by choosing the angle of suspension unit setting.

A way of reducing the dynamic load of transmission with three degrees of freedom in conditions of gear shift transitions is substantiated.