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A novel method of suppressing low-frequency chatter in robotic milling using magnetically-induced nonlinear broadband multidirectional passive vibration absorber
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DOI：10.1016/j.rcim.2026.103324.png)
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Abstract
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• Analyzed the design requirements of the vibration absorber based on the distribution characteristics of robot modal frequencies and modal directional behavior. • An equivalent stiffness modeling method based on nonlinear magnetic forces is proposed. • A dynamic model of the vibration absorber considering nonlinear stiffness is established, and the effects of key parameters on vibration suppression performance are investigated. • A nonlinear stiffness optimization design method under a parameter consistency principle is proposed. • A passive vibration absorber capable of broadband and multi-directional vibration suppression is designed.
Keywords:
vibration absorber
nonlinear stiffness
modal frequency
passive suppression
broadband vibration control
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