Wheel shimmy suppression through the piecewise nonlinear energy sink: elimination of detrimental isolas - presented by Prof. Giuseppe Habib

Wheel shimmy suppression through the piecewise nonlinear energy sink: elimination of detrimental isolas

Prof. Giuseppe Habib

Prof. Giuseppe Habib
Slide at 00:30
NODYCON 2025 Wheel Shimmy Shimmy of Electric Bicycle bilibili Phenomenon Shimmy causes in advanced vehicles The wheel self-excited Four-wheel steering enhances the probability vibration occurs in a of shimmy. Fourth International Nonlinear Dynamics Conference special speed region, In-wheel motor leads to an increase in which was also found unsprung mass. in vehicles, especially Steering by wire diminishes the stiffness and advanced vehicles. constraining force. Traditional Vehicle Advanced Vehicle with Independent Wheel Subsystems 6/17/2025
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Summary (AI generated)

Wheel shimmy is a self-excited vibration phenomenon commonly observed in various wheeled vehicles. As illustrated in the accompanying video, electric bicycles experience shimmy during specific events, particularly when traversing rough terrain. This issue is especially pronounced in advanced vehicles featuring independent wheel systems, such as those with four-wheel steering, in-wheel motors, and steer-by-wire technology, due to their inherent reduced damping and stiffness.