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In this paper transfer of vibration from motor to the bottom group of rotary drier is analyzed in the ADAMS/Vibration module environment. Excitation from unbalanced motor [...]
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The presented poster deals with the Finite Element Analysis dynamical model of VVER 1000 nuclear reactor control rod drive (LKP-M/3). It describes the setting up of the c [...]
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Squirrel cage induction motors are employed in various machines and means of transport mostly as traction motors. The usage of this type of motors in vehicles can be conn [...]
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Zapoměl, Jaroslav
Abstrakt: Rotors belong to the most frequently used components of machine devices. In a number of cases they are coupled with the stationary part through hydrodynamical b [...]
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Abstrakt: A parametric optimization of the gearbox in steady vibration excited by gear kinematics transmission errors is presented. The process is based on the gearbox de [...]
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Abstrakt: A great intention is lately focused on Reinforcement Learning (RL) methods. The article is focused on improving model free RL method known as Q-Iearning algorit [...]
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The paper deals with the comparison and assessment different conception of a vibration microgenerator construction. The vibration microgenerator is device that generates [...]
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The paper deals with a working prototype of a system for the active vibration control of journal bearings to prevent rotor instability due to the oil film. The controllab [...]
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The vibration amplitude of rotors excited by imbalance can be significantly reduced if damping devices are inserted between the rotor and its stationary part. To achieve [...]
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Algorithm of locally weighted regression is presented in this contribution. Local approximator repeatedly uses the locally linear model based on least square method. Simu [...]
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The contribution deals with a mathematical model of bending vibrations of a slender flexible rotor, excited by unbalance when passing the critical speed. The analysed rot [...]
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The paper deals with the engineer design of the levitation magnet for transport systems and magnetic bearings. The optimal solution for the minimum whole volume of the ir [...]
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Zapoměl, Jaroslav
Abstrakt: Properties of fluid film bearings are significantly influenced by the shape of the cross section of the holes in the bearing shells. In computational models the [...]
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Zapoměl, J.
The rotor systems consit of two principal components, of a rotor and of a stationary part, and the fluid film bearings are often used as coupling elements. As the clearan [...]
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The paper deals with the modelling of balancing machine vibration and the identification of the stiffness and damping coefficients of oil-film bearings. The real balancin [...]
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The tilting pad bearings are very often applied in high speed rotating machines. The exact solution of bearing characteristics, including the motion of tilting pads, is v [...]
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The paper deals with the modeling and evaluation of stability conditions of the balanced rotating system with rigid discs supported on two anisotropic hydrodynamic bearin [...]
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Q-learning method proved to be usable in active magnetic bearing (AMB) control task, however the learning speed remains the main problem. Two-phase variant of the Q-learn [...]
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The paper deals with the optimization of parameters (mass parameters of stiff bodies) of the dynamic model of the reactor WWER 1000 support cylinder. Within the model of [...]
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Control design of rotating shaft levitated by active magnetic bearing is described in this contribution. Genetic algorithm is used to design controller parameters. Depend [...]
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Flexural vibrations of rotating disk contain forward and backward traveling waves can be excited at certain speed of rotating disk also by a standing constant single poin [...]
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Abstrakt: The impact motion of rigid rotor supported on passive magnetic bearings is studied. Impacts on passive magnetic bearings are investigated. Impacts occur in reta [...]
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Ferfecki, P.
For the purpose of efficient diagnostics of fault conditions the influence of transverse fatigue crack on dynamical behaviour of a rotor system supported by active magnet [...]
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This paper describes a sensitivity analysis and spectral tuning method of selected design parameters of the large rotating systems. The method is based on the system deco [...]
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The dynamic properties of rotor supported on passive magnetic bearings is investigated by means of numerical solution and by measurement on the prototype of experimental [...]
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