Inherent Stability of Multibody Systems with Variable-Stiffness Springs via Absolute Stability Theory

<div>The phase portrait of a 2-DOF system with different nonlinearities in the feedback path. (a) The phase trajectory with the selected values in the stable ranges. (b) The phase trajectory with the selected values out of the stable ranges.</div>

Complexity

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Figure 8

Figure 8: Inherent Stability of Multibody Systems with Variable-Stiffness Springs via Absolute Stability Theory 