National Repository of Grey Literature 828 records found  beginprevious826 - 828  jump to record: Search took 0.01 seconds. 
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.
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.
Vlastnosti a spalovací aktivita sloučenin typu hydrotalcitu kalcinovaných při různých teplotách
Čuba, Pavel ; Kovanda, F. ; Hilaire, L. ; Jirátová, Květa
This article deals with hctivity of Hydrotalcite-like compounds calcined at various temperatures.

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