Coupled free vibration characteristics of rotating tuned bladed disk systems
作者： V. Omprakash , V. Ramamurti
DOI: 10.1016/0022-460X(90)90759-S
关键词:
摘要: A detailed qualitative study is presented of the coupled free vibration characteristics rotating turbomachinery bladed disk systems having useful ranges geometric parameters. The analysis carried out by using a three noded triangular shell element six degrees freedom per node together with cyclic symmetric nature problem. blade and attachment established set constraint equations obtained Love-Kirchhoff hypothesis. effects rotation are included stress smoothing technique while computing stiffness matrix. contributions from membrane behaviour transverse shear included. severely identified an exhaustive parametric for these to predict influence stagger twist on natural frequencies stationary as well systems. An assessment Southwell's coefficients made. Theoretical results agree closely available experimental results.
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