Approximate Super- and Sub-harmonic Response of a Multi-DOFs System with Local Cubic Nonlinearities under Resonance

<table>Comparison of the time response of the first six mode at different excitation frequency Ω (rad/s): (a) <svg height="11.6375" id="M137" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 60.762501 11.6375" width="60.762501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>.</table>

Journal of Applied Mathematics

fig7

Figure 7

Figure 7: Approximate Super- and Sub-harmonic Response of a Multi-DOFs System with Local Cubic Nonlinearities under Resonance 