Abstract
Belt driving systems applied to many kinds of equipment for industrial machinery encountered a vibration resonance problem due to the increase of the operational speed. To reduce this resonance vibration, we proposed parametric excitation feed-forward control using torque fluctuation. A drawback is not being able to apply it for multi-exciting sources. The alternative ideas were proposed in previous paper, which were bang-bang feedback control using sign function. That method were nonlinear control to fluctuate belt tension using bang-bang switching defined on displacement-velocity phase plane of detected belt vibration It was proved both theoretically and numerically that the methods were very effective to reduce transverse vibration of belt driving system. In order to confirm the control effect experimentally, a test device, which consisted of three pulleys (driving, idler and tension pulley), was established. As a result, this bang-bang feedback control is very effective and has many practical advantages for usage.
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