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Shock and Vibration
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2018
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Article
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Tab 7
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Research Article
Perturbation Methods for the Eigencharacteristics of Symmetric and Asymmetric Systems
Table 7
The real parts of the exact and approximate natural frequencies for the perturbed whirling beam of Figure
11
for
.
Exact
First-order straightforward perturbation
Second-order straightforward perturbation
First-order triple product
Second-order triple product