...Amro M. Al-Qutub; Atia E. Khalifa; Faleh A. Al-Sulaiman The effect of V-cut at impeller blades’ exit on internal pressure fluctuations, case vibration, and performance of a double volute boiler-feed pump has been investigated. Scaled model pump and two impellers, with and without the V-cut, were...

...Behrooz Farshi; Jalal Bidabadi Gas turbine disks are subject to mechanical stresses due to centrifugal forces exerted by the blades, as well as thermal stresses due to high temperature gradient. High stresses in the presence of elevated temperatures cause the rotating disk material to undergo...

... values of the design variables are used. 05 03 2008 19 08 2009 09 10 2009 blades compressors genetic algorithms compressor optimization rotary vane genetic algorithms The performance and characteristics of various compressor types are shown in Table 1...

... , j = 4 , 5 ) where k is the shear correction factor. 01 05 2008 04 03 2009 03 09 2009 blades compressors impact (mechanical) mechanical contact plates (structures) rotors shear deformation impact force compressor vane Hertzian contact rule...

.... Remnant creep life at the center of the rotor is based on the time while accumulated creep strain reaches its threshold level. Creep rupture could occur at other locations such as the outside surface of the shaft at disks∕shaft radii or blade fixings. Finite element analyses were carried out to analyze...

...Fred V. Ellis A metallurgical failure analysis was performed for the stage 17 gas turbine rotating blade and stationary vane. Four pieces, including the failed rotating and stationary blades, were removed from the air-compressor section of a gas turbine. The damaged components were found during...