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K numerické analýze singularit v rezonančních charakteristikách nelineárních parametrických systémů s rázovými jevy v záběru ozubení
Hortel, Milan ; Škuderová, Alena
The impact effects in gear mesh represent specific phenomena in the dynamic investigation of highspeed light transmission systems with kinematic couplings. They are caused of greater dynamic than static-elastic deformations in meshing gear profiles. In term of internal dynamics they are influenced among others by time heteronomous stiffness functions in gear mesh and resonance tuning of stiffness level. The damping in gear mesh and in gear system is concerned significantly in the amplitude progress, greatness and phase shift of relative motion towards stiffness function alternatively towards its modify form in gear mesh. In consequence of these and another actions rise above resonance characteristics certain singular locations with jump amplitude course.
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Interpretace měření CTA anemometrem při nízkém žhavení
Antoš, Pavel
The paper deals with an effect of dynamic adjustment on the behaviour of constant-temperature anemometer. The static dependence of the output anemometer voltage on the gain and the offset voltage of the amplifier was investigated experimentally. Applied model of the CTA feedback system fits the behaviour of the bridge satisfactory.
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Nadřízený software pro autonomního závodního robota
Krejsa, Jiří ; Věchet, Stanislav ; Ondroušek, V.
The paper describes the high level software issues in the task of autonomous robot driving on the park pavement. The task in question is to use the sensor data in order to autonomously navigate on the path given in predefined map. The paper gives detail information on the development of software tools for the task and our experience with different ways of sensors data acquisition.
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Dynamika odtržení mezní vrstvy
Uruba, Václav ; Knob, Martin ; Popelka, Lukáš
Dynamics of separation process of a turbulent boundary layer subjected to adverse pressure gradient is studied experimetally. The Time Resolved PIV method is used to acquire spatiotemporal data. The flow-field in the vicinity of the separation zone is found to be extremely complex.
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Vliv Mindlinových okrajových podmínek na šíření vln v tlusté anizotropní desce
Červená, Olga ; Hora, Petr
This paper deals with analytical formulation of dispersion curves for stress waves in a free (001)-cut cubic and orthotropic plate. The direction of wave propagation is arbitrary. The dispersion curves for Cu and carbon reinforced composite are presented. These results are compared to the uncoupled Mindlin modes. This work is very important for determination of the elastic coefficients of anisotropic materials.
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