000000969 001__ 969
000000969 005__ 20141118153509.0
000000969 04107 $$acze
000000969 046__ $$k2002-05-13
000000969 100__ $$aZapoměl, Jaroslav
000000969 24500 $$aROZVOJ METODY POČÍTAČOVÉHO MODELOVÁNÍ V OBLASTI DYNAMIKY ROTORŮ S NELINEÁRNÍMI VAZBOVÝMI ELEMENTY
000000969 24630 $$n8.$$pEngineering Mechanics 2002
000000969 260__ $$bInstitute of Mechanics and Solids, FME, TU Brno
000000969 506__ $$arestricted
000000969 520__ $$2cze$$aAbstrakt: 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 bearings or squeeze film dampers. Even if technical utilization of these constraint elements started only several decades ago, beginnings of their research go back till to the first half of the 19th century. An important instrument for their investigation is a computer modelling method. Contemporary requirements put on the technical level of rotor systems (increse of the speed of rotation, work in extremal conditions - high or low temperature, vacuum, aggressive environment, ecological reasons, etc.) arrive at needs to accommodate new properties and phenomena (compliance of the bearing, cavitation in the oil film, inertia effects of the lubricant, turbulent flow in the oil layer, roughness of the surfaces, etc) in their computational models. Development in this field (approaches to calculation of a pressure function taking into account inertia of the lubricant and cavitation in the oil film, procedures for analysis of a transient response, steady-state response, stability, bifurcations and character of the vibration) has been also contributed by several research projects supported by the Grant Agency and Ministry of Education of the Czech Republic.
000000969 520__ $$2eng$$aAbstract: 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 bearings or squeeze film dampers. Even if technical utilization of these constraint elements started only several decades ago, beginnings of their research go back till to the first half of the 19th century. An important instrument for their investigation is a computer modelling method. Contemporary requirements put on the technical level of rotor systems (increse of the speed of rotation, work in extremal conditions - high or low temperature, vacuum, aggressive environment, ecological reasons, etc.) arrive at needs to accommodate new properties and phenomena (compliance of the bearing, cavitation in the oil film, inertia effects of the lubricant, turbulent flow in the oil layer, roughness of the surfaces, etc) in their computational models. Development in this field (approaches to calculation of a pressure function taking into account inertia of the lubricant and cavitation in the oil film, procedures for analysis of a transient response, steady-state response, stability, bifurcations and character of the vibration) has been also contributed by several research projects supported by the Grant Agency and Ministry of Education of the Czech Republic.
000000969 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000000969 7112_ $$aEngineering Mechanics 2002$$cSvratka (CZ)$$d2002-05-13 / 2002-05-16$$gEM2002
000000969 720__ $$aZapoměl, Jaroslav
000000969 8560_ $$ffischerc@itam.cas.cz
000000969 8564_ $$s235890$$uhttps://invenio.itam.cas.cz/record/969/files/Zapomel_2.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000000969 962__ $$r451
000000969 980__ $$aPAPER