A general framework based on symmetry arguments and eigenvalue/vector
perturbations is presented to answer both questions.
Symmetry constrains all facets of mistuning behaviour and provides
simplifications for both the analysis and control problems. This is combined
with the eigenvalue/vector perturbation which captures the nonlinear
mistuning dependence and solves the analysis problem. It is shown that
intentional mistuning can provide robust damping and so guarantee
improved stability and forced response under fixed manufacturing
tolerances. Results are demonstrated on a high-fidelity low-order
model derived from computational-fluid-dynamic data.
CDS Technical Report
(PDF, 3583K, 168 pages)
Downloading and printing FAQ