Research Article

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

Table 2

Relative errors analysis for case B.

Time (s)380380.4381.5382.1382.5383383.9384.4385385.4

Rel. error4.3%5.4%2.7%1.0%3.8%1.1%5.1%1.7%3.3%5.6%