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The effect of calculation perturbation is compensated at each calculation step of Newmark method, and a new numerical method for determining unbalanced responses of dynamic systems is obtained. The proposed method is employed to analyze nonlinear dynamic behaviors of single disk symmetrical flexible rotor-bearing system. It is shown that the proposed method has high precision by comparison of numerical...
Nonlinear dynamic behaviors of hydrodynamic bearing-flexible rotor system are analyzed. A local iteration method consisting of improved Wilson-thetas method, predictor-corrector mechanism and Newton-Raphson method is proposed to calculate nonlinear dynamic responses. By the proposed method, the iterations are only executed on nonlinear degrees of freedom. The stability and bifurcation type of the...
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