"P(GP101/07/P368), Z(MSM6198910027)" . . "RIV/61989100:27690/08:00019854" . "For the purpose of efficient diagnostics of fault conditions the influence of fatigue cracks on dynamical behaviour of a rotor system supported by radial active magnetic bearings (AMB) must be clarified. The coupling of bending and torsional vibrations, bending and longitudinal vibrations and longitudinal and torsional vibrations due to the presence of transverse fatigue crack in the rotor system supported by radial AMB is investigated by computer simulations. The steady-state response of a rotor system on excitation by centrifugal forces due to unbalance of the rotating parts and in some special cases additional torsional harmonic excitation is studied in both time and frequency domain. When an angular speed of rotor was not an integer fraction of frequency of torsional excitation, the frequency spectra contained side frequencies around the frequency of angular speed of rotor. The obtained results in this work can therefore help with detection of fatigue cracks in a rotor system supported by radial A" . "Vysok\u00E1 \u0161kola b\u00E1\u0148sk\u00E1 - Technick\u00E1 univerzita Ostrava" . "EXAMINATION OF STEADY-STATE RESPONSE OF ROTOR SYSTEM WITH FATIGUE CRACK" . . . "1"^^ . . . . . "978-80-248-1813-9" . "7"^^ . "Rotor system; radial active magnetic bearing; transverse fatigue crack"@en . . . "1"^^ . . "ZKOUM\u00C1N\u00CD UST\u00C1LEN\u00C9 SLO\u017DKY ODEZVY ROTOROV\u00C9 SOUSTAVY S \u00DANAVOVOU TRHLINOU"@cs . "367044" . . . "New Methods of Damage and Failure Analysis of Structural Parts" . "EXAMINATION OF STEADY-STATE RESPONSE OF ROTOR SYSTEM WITH FATIGUE CRACK"@en . . . "EXAMINATION OF STEADY-STATE RESPONSE OF ROTOR SYSTEM WITH FATIGUE CRACK"@en . . "For the purpose of efficient diagnostics of fault conditions the influence of fatigue cracks on dynamical behaviour of a rotor system supported by radial active magnetic bearings (AMB) must be clarified. The coupling of bending and torsional vibrations, bending and longitudinal vibrations and longitudinal and torsional vibrations due to the presence of transverse fatigue crack in the rotor system supported by radial AMB is investigated by computer simulations. The steady-state response of a rotor system on excitation by centrifugal forces due to unbalance of the rotating parts and in some special cases additional torsional harmonic excitation is studied in both time and frequency domain. When an angular speed of rotor was not an integer fraction of frequency of torsional excitation, the frequency spectra contained side frequencies around the frequency of angular speed of rotor. The obtained results in this work can therefore help with detection of fatigue cracks in a rotor system supported by radial A"@en . "Ostrava" . "Ferfecki, Petr" . "Za \u00FA\u010Delem efektivn\u00ED diagnostiky poruchov\u00FDch stav\u016F se mus\u00ED pln\u011B objasnit vliv \u00FAnavov\u00FDch trhlin na dynamick\u00E9 chov\u00E1n\u00ED rotorov\u00E9 soustavy ulo\u017Een\u00E9 v radi\u00E1ln\u00EDch aktivn\u00EDch magnetick\u00FDch lo\u017Eisk\u00E1ch (AML). Pomoc\u00ED po\u010D\u00EDta\u010Dov\u00FDch simulac\u00ED je zkoum\u00E1na vazba mezi ohybov\u00FDm a torzn\u00EDm kmit\u00E1n\u00EDm, ohybov\u00FDm a pod\u00E9ln\u00FDm kmit\u00E1n\u00EDm a pod\u00E9ln\u00FDm a torzn\u00EDm kmit\u00E1n\u00EDm zp\u016Fsoben\u00FDm p\u0159\u00ED\u010Dnou \u00FAnavovou trhlinou u rotorov\u00E9 soustavy ulo\u017Een\u00E9 v radi\u00E1ln\u00EDch AML. Ust\u00E1len\u00E1 slo\u017Eka odezvy rotorov\u00E9 soustavy buzen\u00E9 odst\u0159ediv\u00FDmi silami zp\u016Fsoben\u00FDmi rotuj\u00EDc\u00EDmi \u010D\u00E1stmi a v n\u011Bkter\u00FDch p\u0159\u00EDpadech i harmonick\u00FDm torzn\u00EDm buzen\u00EDm je stanovena v \u010Dasov\u00E9 a frekven\u010Dn\u00ED oblasti. Jestli\u017Ee \u00FAhlov\u00E1 rychlost rotoru nebyla celo\u010D\u00EDseln\u00FDm pod\u00EDlem frekvence torzn\u00EDho buzen\u00ED, pak ve frekven\u010Dn\u00EDm spektru se nach\u00E1zej\u00ED postrann\u00ED frekvence okolo \u00FAhlov\u00E9 rychlosti rotoru. V\u00FDsledky z\u00EDskan\u00E9 v t\u00E9to pr\u00E1ci proto mohou pomoci p\u0159i detekci \u00FAnavov\u00FDch trhlin v rotorov\u00FDch soustav\u00E1ch ulo\u017Een\u00FDch v radi\u00E1ln\u00EDch AML."@cs . "RIV/61989100:27690/08:00019854!RIV09-MSM-27690___" . "EXAMINATION OF STEADY-STATE RESPONSE OF ROTOR SYSTEM WITH FATIGUE CRACK" . "27690" . "ZKOUM\u00C1N\u00CD UST\u00C1LEN\u00C9 SLO\u017DKY ODEZVY ROTOROV\u00C9 SOUSTAVY S \u00DANAVOVOU TRHLINOU"@cs . . . "[DAD27654EAA2]" .