, Volume 50, Issue 4, pp 841-847
Date: 15 Feb 2007

On an approximate analytical solution to a nonlinear vibrating problem, excited by a nonideal motor

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Abstract

This paper analyzes through Multiple Scales Method a response of a simplified nonideal and nonlinear vibrating system. Here, one verifies the interactions between the dynamics of the DC motor (excitation) and the dynamics of the foundation (spring, damper, and mass). We remarked that we consider cubic nonlinearity (spring) and quadratic nonlinearity (DC motor) of the same order of magnitude according to experimental results. Both analytical and numerical results that we have obtained had good agreement.