Approximate Solution of Fourth Order Near Critically Damped Nonlinear Systems with Special Conditions
DOI:
https://doi.org/10.3329/jbas.v36i2.12962Keywords:
Perturbation method, Weak nonlinearity, Near critically damped nonlinear systemAbstract
A perturbation technique has been developed based on the Krylov-Bogoliubov-Mitropolskii (KBM) method to investigate the solution of fourth order near critically damped nonlinear systems in the case of ?1??2, ?4 ? ?3 + 2?1 but ?4<2?3 among the eigenvalues ?1, ?2, ?3, ?4. The solutions obtained by this technique were compared with those obtained by numerical method. The method has been explained by an example.
DOI: http://dx.doi.org/10.3329/jbas.v36i2.12962
Journal of Bangladesh Academy of Sciences, Vol. 36, No. 2, 187-197, 2012
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