Pulse Response of Non-linear Non-stationary Vibrational Systems with N Degrees of Freedom
نویسندگان
چکیده
The paper deals with an approximate analysis of non-linear, non-stationary vibrational systems with multiple degrees of freedom subjected to a pulse excitation. The nonstationary system parameters, which may include masses, restoring forces or damping, are considered to be slowly varying functions of time. A general procedure for obtaining the first order approximate solution is presented through an application of the BogoliubovMitropolsky technique. The special case of systems with two degrees of freedom is studied in detail. An illustrative example is included and the results are compared with fourth-order Runge-Kutta numerical solutions.
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تاریخ انتشار 2007