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	Measurements on rotating turbomachinery elements using a telemetric system developed in the Institute of Thermomechanics Vaněk, František ; Cibulka, Jan ; Jelen, Václav Detailed record
	Křemíkové tenzometrické čidlo síly Vaněk, František ; Cibulka, Jan Detailed record
	Měření statického tlaku na stěně v nestacionárním proudu pomocí polovodičových tlakových sond Vaněk, František ; Cibulka, Jan Detailed record
	Snímače absolutního tlaku s křemíkovými čidly Vaněk, František ; Cibulka, Jan Detailed record
	Measurement and analysis of vibration and acoustic emission of railway wheel set with and without optimized dampers Pešek, Luděk ; Veselý, Jan ; Vaněk, František ; Cibulka, Jan The aim of this work was to propose a method for experimental verification of vibro-acoustic damping elements of the railway wheel-set. There were dealt with 4 solutions of the wheels. For these solutions, the three kinds of dynamic excitation were proposed. The measurement of acousti prressure and acoustic internsity was carried out in selected points of the wheel surounding. Detailed record
	Contribution to experimental research of thermo-mechanical behavior of tram wheel rubber segment Pešek, Luděk ; Vaněk, František ; Veselý, Jan ; Cibulka, Jan This contribution deals with press-tensile dynamic tests of tram wheel rubber segments. The evaluation of dynamic quantities was performed using hysteresis loops of force response versus loading displacement. The obtained dynamic behavior of the segments will be used for their numerical modeling in vibro-acoustic finite element tram wheel model. For research of thermo-mechanical interactions of elastomers in dynamic loadings, the inner temperatures were measured by use of single ended bead-type thermistor. Detailed record
	Modal analysis of rubber-damped wheel with and without the damper for SGP Graz Pešek, Luděk ; Veselý, Jan ; Vaněk, František ; Cibulka, Jan The aim of this work was to identify experimental eigenfrequencies, eigenmodes and loss factors for rubber-damped railway wheels with and without acoustic damper for SGP Graz. The excitation was realized by an elektrodynamic vibrator with different levels of excitation. The wheel was hung on the flexible rope. The frequency range was up to 6400Hz. Detailed record
	Evaluation of damping for two-component material mixture on the test samples at different temperatures Pešek, Luděk ; Veselý, Jan ; Vaněk, František ; Cibulka, Jan The report deals with the experimental evaluation of inner damping of a two-component mixture (NBR and NBR/BR) that is proposed for a damper production. The tests were done on two defined samples for temperature range from -40oC up to 100oC and frequency range up to 7kHz. The method of testing was proposed for the evaluation according to American standards SAE J1637 and ASTM E756-98. Detailed record
	Design of an experimental set up for studies of 2D unsteady aeroelastic phenomena by optical methods Horáček, Jaromír ; Luxa, Martin ; Vaněk, František ; Veselý, Jan ; Vlček, Václav The report is an introductory study in the design of optical methods for visualization of unsteady flow fields near a vibrations profile with two degrees of freedom. The report contains description of the aeroelastic model, the results of measurements of dynamic and aeroelastic characteristics of the model in the wind tunnel and design of methodology for the optical measurements including schemes of special synchronization electronic circuits and the overall device connection arrangement. Detailed record
	Termomechanické procesy v poddajných tlumících členech Pešek, Luděk ; Půst, Ladislav ; Vaněk, František Effect of increase of heat in the rubber-like materials with high inner damping during repeated deformation is investigated. Rheological properties e.g. stiffness and damping of such materials depend considerably on temperature. Knowledge of complex modulus properties of polymeric damping materials are strongly needed for the design of systems suppressed to vibrations, for the control of vibrations and noise. Simplified mathematical model of two degrees of freedom is analysed from the point of view of lost energy, heat transfer between inner and outer part, cooling of the surface and changing stiffness and inner damping. This model is the first stage for studying of thermomechanic interaction in the 3D form of damping elements by FEM Detailed record

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