...Frantisek L. Eisinger; Robert E. Sullivan Fatigue cracks from high cycle vibratory loading have developed in a centrifugal fan impeller after a relatively short period of operation. Based on vibration tests of the impeller and acoustic analysis of the internal spaces of the fan, structural-acoustic...

... acoustic wave propagation matrix algebra vibrations structural acoustics modal analysis 30 12 2005 02 10 2006 After having provided full FE models by Eq. 1 or assembled models by CMS according to Eq. 7 , a model reduction by modal truncation on the nonsymmetric system is applied...

... . 19 12 2005 10 02 2006 pipes pipe flow vibrations turbulence structural acoustics cavitation orifices (mechanical) There is a surprisingly small number of scientific references about water pipes vibrations in the low frequency range (see the recent review in ( 1...

... November 2002 19 June 2002 10 February 2003 05 05 2003 nuclear reactor steam generators fission reactor design vibrations structural acoustics damping Acoustic standing waves typically develop within the tube banks inside the confined spaces of the flow channels from...