DOI: https://doi.org/10.15368/theses.2018.91
Available at: https://digitalcommons.calpoly.edu/theses/1867
Date of Award
4-2018
Degree Name
MS in Mechanical Engineering
Department/Program
Mechanical Engineering
Advisor
Xi Wu
Abstract
This thesis is intended to provide fundamental information for the construction and
analysis of rotordynamic theoretical models, and their comparison the experimental
systems. Finite Element Method (FEM) is used to construct models using Timoshenko
beam elements with viscous and hysteretic internal damping. Eigenvalues
and eigenvectors of state space equations are used to perform stability analysis, produce
critical speed maps, and visualize mode shapes. Frequency domain analysis
of theoretical models is used to provide Bode diagrams and in experimental data
full spectrum cascade plots. Experimental and theoretical model analyses are used
to optimize the control algorithm for an Active Magnetic Bearing on an overhung
rotor.
Included in
Acoustics, Dynamics, and Controls Commons, Applied Mechanics Commons, Computational Engineering Commons, Control Theory Commons, Dynamic Systems Commons, Numerical Analysis and Computation Commons, Ordinary Differential Equations and Applied Dynamics Commons