Figure 1. Frequency response curves of the mechanical part at subharmonic resonance case with linear velocity feedback when: F=3.0, γ1=2.0, ω1=1.0, σ3=0.01, μ1=0.1, α1=2.5, b=0.01, G1=0.1

From

Vibration Control of an Electromechanical Model with Time-Dependent Magnetic Field

Usama H. Hegazy, Jihad Y. Abu Ful

Journal of Mechanical Design and Vibration. 2016, 4(1), 1-9 doi:10.12691/jmdv-4-1-1