... finite element analysis Monte Carlo methods reduced order systems rotors statistical distributions vibrations Substituting Eq. 3 into Eq. 1 and premultiplying by Φ H , the reduced order model is obtained as follows: 5 M r y ̈ + K r y = 0 where 6 M r...

... for an academic rotor are presented to establish the validity of the technique. 22 07 2007 22 02 2008 08 04 2009 blades discs (structures) geometry reduced order systems rotors vibrations Mistuning refers to inevitable variations in blades’ properties, which arise during...

... accuracy relative to finite element results, even for a case in which the displacement and stress levels show different frequency response trends. 23 02 2005 01 08 2005 blades vibrations discs (structures) turbines engines reduced order systems finite element analysis reliability...

...) reduced order systems transient analysis vibrations engines military equipment Bladed disks are generally designed to be cyclically symmetric with each blade identical. However, due to imperfections in the manufacturing process as well as wear during operation, there are slight variations from...

... Chair: H. R. Simmons. 16 June 2003 01 Dec 2002 01 Mar 2003 26 03 2004 rotors tuning identification reduced order systems vibrations gas turbines Bladed disks used in turbine engines are nominally designed to be cyclically symmetric. If this were the case...