Feedback stabilization of snap-through buckling in a preloaded two-bar linkage with hysteresis |
| |
Authors: | Ashwani K Padthe Nalin A Chaturvedi Dennis S Bernstein Sanjay P Bhat Anthony M Waas |
| |
Institution: | aDepartment of Aerospace Engineering, The University of Michigan, Ann Arbor, MI 48109-2140, USA |
| |
Abstract: | We study a linearly damped preloaded two-bar linkage that exhibits hysteresis due to the presence of multiple attracting equilibria. The dynamics at the unstable equilibrium, through which a snap-through buckle occurs, are not linearizable due to a solution-dependent singularity. We stabilize the unstable equilibrium using two distinct non-linear controllers. The feedback-linearization controller requires knowledge of the linkage parameters, whereas the robust version of the intrinsic non-linear proportional-derivative controller requires only an upper bound on the stiffness. |
| |
Keywords: | Buckling Hysteresis Robust control |
本文献已被 ScienceDirect 等数据库收录! |