FREE VIBRATIONS ANALYSIS OF SHROUDED BLADED DISCS WITH ONE LOOSE BLADE

Autor: ROMUALD RZĄDKOWSKI, LESZEK KWAPISZ, MARCIN DREWCZYŃSKI, RYSZARD SZCZEPANIK, JAMMI SRINIVASA RAO
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: TASK Quarterly, Vol 10, Iss 1 (2006)
Druh dokumentu: article
ISSN: 1428-6394
Popis: As a failure of rotor blades in a gas turbine was reported, the rotating-mode shapes of flexible shrouded bladed disc assemblies were calculated using a finite element approach. Rotational effects, such as centrifugal stiffening were accounted for, and all couplings between the flexible parts were allowed. The spin softening effects were neglected. A dynamic analysis of the shrouded bladed disc demonstrated that it was designed with a sufficient safety region of resonance. In case of one blade getting loose, it is vibrating in resonance.
Databáze: Directory of Open Access Journals