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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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This paper deals with alternative techniques how to get the velocity signal that is needed for the velocity feedback loop. Common implementation of obtaining the velocity [...]
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Abstrakt: This contribution deals with the functional description and initial setting of the Reactor Vibration Monitoring System (RVMS) that is supplied as a part of the [...]
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This contribution describes the experimental indirect identification method for linear damped dynamic systems with multiple inputs and multiple outputs (so called MIMO sy [...]
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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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Almost all empirical models dealing with the flow curves of nonNewtonian fluids can be applied only in the case of monotonous course of these curves. Exceptionally it is [...]
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Chaos and chaos theory is a field of study in mathematics, computer sciences, electronics, physics and also engineering too. In our article will be explored chaotic behav [...]
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The presented paper documents the concept and some major results of the heat transfer and stress analyses performed on a cylinder and a cylinder head of an aircraft pisto [...]
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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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Self compacting concrete (SCC) is a very fluid concrete that is characterized by its high volume of paste, and the use of superplasticizer. The effects of recycled aggreg [...]
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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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To a basic one-mass self-excited system a tuned absorber is attached the motion of which is influenced by soft impacts. The self-excitation is considered as of van der Po [...]
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The paper proposes an approach to modeling of systems with a parametric uncertainty. The approach is based on use of upper linear fractional transformation which is commo [...]
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Ballo, I.
In the paper the properties of active and semi -active suspensions of heavy goods vehicle are compared. The criteria of comparison were the RMS sprung mass vertical accel [...]
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The paper presents the description of behavior of selected soils subjected to relatively high hydraulic gradients based on experimental results. The influences of all maj [...]
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The study presents three-dimensional finite element (FE) model of flow induced oscillations of the human vocal folds in interaction with acoustic processes in the simplif [...]
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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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Frequency modal and damping characteristics of an aeroelastic model designed for experiments in the wind tunnel are studied. Based on the experimental modal analysis the [...]
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The article describes results of durability test of a magnetorheological fluid (MRF) which was carried out in a custom design rheometer. The rheometer design allows measu [...]
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One of the possibility, how to reduce amplitude of transversal vibration of rotors is to put together their rotating and no-rotating part by the squeeze film damper. This [...]
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21.
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Stodola, J.
Monitoring of technical condition of machines (e.g. engines) based on used oil analysis is an urgent practice to optimize control and maintenance. Both perfect wear produ [...]
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Approach for determination of the dynamic behavior of an elastic body submerged in fluid is presented in this contribution. Method is based on independent solution of the [...]
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Checking analyses of large steel tanks with fluid have been carried out within the frame of the project of completion of Units 3 a 4 of the nuclear power plant Mochovce. [...]
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Engineering structures subjected to dynamic loading are often equipped with special devices proposed to suppress adverse motion. However, these installations are often d [...]
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The paper deals with practical experience with measurement of acoustic power of the model - annular plate – while using plate absorptive dampers of the same area dimens [...]
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One possibility how to decrease lateral vibration of rotors excited by imbalance of the rotating parts is to couple the shaft with the stationary part through squeeze fil [...]
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33.
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Votrubec, R.
This Paper deals with an identification of a damper with magnetoreological fluid. A global characteristic is used for description of damping force, that depends on veloci [...]
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