Fig. 10From: Paradoxes in dynamic stability of mechanical systems: investigating the causes and detecting the nonlinear behaviorsTime histories relevant to the case study I for the uncontrolled (dark gray curves) and controlled (light gray curves), when \(\mu =0.68\) and \(\gamma =0.05\): a \(\vartheta _{1}\) versus t; b \(\vartheta _{2}\) versus t Back to article page