20.500.12556/DKUM-66228 Emergency gate vibration of the pipe-turbine model The vibration behaviour of an emergency gate situated on a horizontal-shaft Kaplan turbine is studied. The analysis and transfer of the dynamic movements of the gate are quite complex. In particular the behaviour is examined of the emergency gate for the case when the power unit is disconnected from the system or there is a breakdown of the guide vane system at the moment when the maximal head and capacity are achieved. Experimental-numerical methods both in the time domain and in the frequency are employed. Natural vibrations characterize a first zone, corresponding to relatively small gate openings. As the gate opening increases, the vibration behaviour of the gate becomes increasingly dependent on the swirl pulsations in the draft tube of the turbine. Finally, the data transfer from the model to the prototype by use of the dinamic similitude law is discussed. water turbines emergency gates vibrations vibration measurement vodne turbine varnostne zapornice vibracije meritve vibracij true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-06-15 11:36:40 2017-06-15 11:44:01 2022-07-10 03:07:01 2021-05-15 03:34:40 2000 0 0 str. 3-13 št. 1 Letn. 7 2000 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1070-9622 534:621.224:727.8 15155205 5422358 10.1155/2000/406976 1070-9622 URN:SI:UM:DK:L0ZXKIIR Shock_and_Vibration_2000_Predin,_Klasinc_Emergency_Gate_Vibration_of_the_Pipe-Turbine_Model.pdf Shock_and_Vibration_2000_Predin,_Klasinc_Emergency_Gate_Vibration_of_the_Pipe-Turbine_Model.pdf 1 E488163CA02D943F95805F16E1AEE014 47a61bae8b8b7f0c6a4cef5920f889109f6c231bf41991356dccaff25233be11 40584e12-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=112609 http://www.hindawi.com/journals/sv/2000/406976/abs/ 1 https://dk.um.si/Dokument.php?lang=slv&id=112607 Fakulteta za strojništvo 0 0 0