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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Final report on measurements of dynamic stress and blade vibration of the low-pressure part TG2 at ETE, VYZ/TZ 56/113
 Chmelíček, M. ; Procházka, Pavel ; Turinský, M. ; Laštovka, B.
The report summarizes the results of measurements of dynamic stress and blade vibration of the low-pressure part TG2 at ETE. Recomendations for further development of measurement and vibrodiagnostic system are included.
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Application opportunity of IT's contactless vibrodiagnostic system for measurement of dynamic behaviour of rotor bladed wheels.
 Vaněk, František ; Pešek, Luděk ; Procházka, Pavel ; Cibulka, Jan ; Turinský, M. ; Laštovka, B.
Variable excitation forces evoke a rotor blade vibration at jet engines. For description of the blade vibrations, parameters such as modes, frequencies and amplitudes, are evaluated in different operational regimes of engines. Since the operational forces are not fully known and mechanical parameters of the blades changes during sirvece the vibrodiagnostic measuring system VDS.IT was developed in IT AS CR. This system can be used for long-term measurement of vibration of all free-ended blades of rotors. Since the latest development of shrouded blades this system has been modified and fully tested in the Experimental laboratory of Škoda Power, Plzeň. The changes and results are discussed in this contribution.
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