A5026588740- Mechanical Systems and Engineering
- Dynamics and Control of Mechanical Systems
- Space Satellite Systems and Control
- Effects of Vibration on Health
- Vibration Control and Rheological Fluids
- Engineering Technology and Methodologies
- Structural mechanics and materials
- Vibration and Dynamic Analysis
- Astro and Planetary Science
- Mechanics and Biomechanics Studies
- Soil Mechanics and Vehicle Dynamics
- Astronomical Observations and Instrumentation
- Industrial Engineering and Technologies
- Mechanical and Thermal Properties Analysis
- Robotic Mechanisms and Dynamics
- Geophysics and Gravity Measurements
- Geotechnical and Geomechanical Engineering
- GNSS positioning and interference
- Radio Astronomy Observations and Technology
- Elasticity and Wave Propagation
- Advanced Numerical Analysis Techniques
- Planetary Science and Exploration
- Modeling, Simulation, and Optimization
- Geological Modeling and Analysis
- Aerospace Engineering and Control Systems
Omsk State Technical University
2018-2022
Russian Academy of Sciences
2006
Pulkovo Observatory
2004
Limitation of the swing bridge crane cargo rope is a matter urgency, as it can significantly improve efficiency and safety work performed. In order to completely dampen pendulum after break-up or bridge-crane freight cart maximum speed, necessary, in normal repulsion control electric motor, split process dispersion into minimum three gaps. For dynamic system swinging on flexible cable hanger separate vertical plane, an analytical solution was obtained determine temporal dependence angle...
Abstract A simulation model for a earth-moving machine is developed using motor grader as an example. The comprises chassis base frame, front balancing bridge, rear carts and working equipment – traction frame with moldboard. These elements are included in the form of separate moving elements. allows vibrations units to be explored while it moves along microrelief reference surface, well energy loss due friction suspension determined. Using this model, amount accumulated help improved...
Abstract Payload uncontrolled oscillations arising during movement of a loaded self-propelled crawler crane at construction site were reduced by equipping the with two additional compensating ropes equal in length and connecting rotating platform to load gripping device. This also increased stability entire system. The margin moment was used evaluate individual tipping axes support contour. While moving along random microrelief surface, under varied rotation angle, reduction mathematical...
A comparative analysis of three different methods damping cargo plane oscillations at the approach lifting body overhead crane to point delivery: using a proportional-integral-derivative controller for speed load, proportional-integral-differential regulator moving and braking suspension with constant acceleration. We consider advantages disadvantages each method, recommended range applications.
The method of complete analytical solution the problem cargo movement on a pendulum suspension constant length set trajectory in flat statement is developed. To required as time dependence linear horizontal coordinate limited interval, two-point Hermite polynomials are used. When certain amount first derivatives load equal to zero direction at ends segment, vertical arrangement crane's rope provided boundary points and there no uncontrolled angular swings during entire movement. Analytical...
Abstract The article is devoted to the urgent problem of improving roadway cleaning efficiency. To achieve maximum efficiency, an optimal pressing force brush equipment surface being cleaned should be provided. A schematic diagram a sweeping machine working process as complex dynamic system was constructed including basic machine, and running equipment, hydraulic drive, road surface, well microrelief control device reflecting effect on vertical coordinate equipment. mathematical model...
Abstract One of the leading areas improving road construction machines is to increase comfort and safety human operator by reducing vibration effects. Therefore, most simple available way implement this direction applying passive isolation a operator’s seat. Vibration protection mechanisms such seats typically have one translational degree freedom. Studying single freedom systems under various external influences, in particular, with kinematic excitation base displacements relevant topic...
Abstract Reducing the vibration effects on a human operator of construction, road or handling machine is an urgent task, since loads produced by internal combustion engine, vehicle engine interacting with support surface microrelief, as well working attachment, adversely affect and increase parts assemblies wear. The may develop occupational diseases caused vibrations. In this regard, research objective to mathematical apparatus simulating dynamic processes passive protection systems...
Abstract The relevant task of reducing the vibrations transmitted to a human operator construction or road vehicle during operating process is accomplished, among other things, by conducting research on mathematical models. Oscillations simulation operator’s seat antivibration suspension means numerical solution ordinary differential equations system remains one main methods study, used in particular for discrete models verification. Therefore, problem determining rational value maximum...
Investigations of the effect moldboard angle, earth-moving machine motor grader type, on angle cross slope formed earth surface was carried out. It is established, that in direction being graded, depends angles installation blade element. The not affected by dimensions and construction machine. Analytical graphical functional dependences inclination element to horizontal plane are obtained, which necessary ensure a given graded. results research can be applied field development tuning...
Abstract Analytical expressions of the coordinates load, suspension point and rope deviation angle, as well their first three time derivatives were obtained by setting desired load movement trajectory on a pendulum type flexible crane using two-point Hermite splines with quartic highest derivatives. A well-known mathematical model oscillatory system described linearized differential equation was used. With movements, uncontrollable oscillations are absent. The moves exactly along reference...
Abstract Using two-point Hermite splines, the reference spatial trajectory of a payload on non-rigid pendulum suspension an overhead crane was set as combination plane controlled oscillations in two mutually perpendicular movement directions bridge and trolley. Under absent uncontrolled oscillations, payload, point coordinates rope deviation angles were calculated. example constant bypassing single obstacle absence mass effect forces acting from side drives trolley investigated. The time...
Abstract The formulas for a complete analytical solution of the problem moving cargo on pendulum suspension constant length along given trajectory in plane setting are presented. To set desired as time dependence linear horizontal coordinate limited interval, two-point Hermite polynomials used. field application method is automatic control movement bridge and gantry cranes, well modeling crane working processes. to small angles deviation rope from gravitational vertical. makes it possible...