Nonlinear dynamic analysis of pneumatic artificial muscle acutator under forced and parametric excitations

Abstract

In this work two physical systems with pneumatic artificial muscle PAM have been considered for the nonlinear dynamic analyses In the first physical system a PAM and a spring are connected to a mass which is subjected to an external harmonic force with a constant pressure inside the muscle In the second physical system a PAM is connected to a mass which is subjected to a time varying pneumatic pressure The muscle force is expressed as a nonlinear function of pressure The governing equat...