About: Temperature processes at two sliding surfaces subjected to dry friction

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Application of dry friction damping contact is very often used for damping of turbine blades vibration. This problem is intensively studied in our Institute for several years, but the deficiency of knowledge of special material’s friction characteristics introduces serious uncertainty into the results of research, particularly for the friction connection with periodic relative motion. Therefore, laboratory experimental equipment has been designed and realized. Results of the first set of measurement are presented and discussed. Friction of double steel blade material and overlay of tungsten carbide was investigated for various thrust forces and frequencies of relative motion at the simultaneous measurement of temperatures in three points near the friction surface. An increase of temperature after 25 s of friction run, friction coefficient, friction force, dissipated energy in one cycle during 1 s, entire energy during the friction run, lost power, and energy for 1 oC temperature increase in various conditions were ascertained. Application of dry friction damping contact is very often used for damping of turbine blades vibration. This problem is intensively studied in our Institute for several years, but the deficiency of knowledge of special material’s friction characteristics introduces serious uncertainty into the results of research, particularly for the friction connection with periodic relative motion. Therefore, laboratory experimental equipment has been designed and realized. Results of the first set of measurement are presented and discussed. Friction of double steel blade material and overlay of tungsten carbide was investigated for various thrust forces and frequencies of relative motion at the simultaneous measurement of temperatures in three points near the friction surface. An increase of temperature after 25 s of friction run, friction coefficient, friction force, dissipated energy in one cycle during 1 s, entire energy during the friction run, lost power, and energy for 1 oC temperature increase in various conditions were ascertained. (en)
Title	Temperature processes at two sliding surfaces subjected to dry friction Temperature processes at two sliding surfaces subjected to dry friction (en)
skos:prefLabel	Temperature processes at two sliding surfaces subjected to dry friction Temperature processes at two sliding surfaces subjected to dry friction (en)
skos:notation	RIV/61388998:_____/12:00421444!RIV14-GA0-61388998
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA101/09/1166)
http://linked.open...iv/cisloPeriodika	5/6
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Cibulka, Jan Pešek, Luděk Bula, Vítězslav Půst, Ladislav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	173719
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/12:00421444
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dry friction; vibration damping; experimental set; increase of temperature; lost energy (en)
http://linked.open.../riv/klicoveSlovo	increase of temperature lost energy vibration damping dry friction experimental set
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[7B4FE2BB1729]
http://linked.open...i/riv/nazevZdroje	Strojnický časopis
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Research of dynamic behaviour and optimalization of complex rotating systems with non-linear couplings and high damping materials
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	63
http://linked.open...iv/tvurceVysledku	Bula, Vítězslav Cibulka, Jan Pešek, Luděk Půst, Ladislav
issn	0039-2472
number of pages	16 (xsd:int)

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