Faculty Publications and Other Works -- Mechanical, Aerospace and Biomedical Engineering
Title
Nonlinear Dynamics of an Electrically Driven Impact Microactuator
Document Type
Article
Publication Date
2005
Abstract
We study the dynamics of an electrostatically driven impact microactuator. Impact between moving elements of the microactuator is modeled using the coefficient of restitution. Friction between the microactuator and its supporting substrate is modeled using the Amonton–Coulomb law. We consider the bifurcations under changes in the driving voltage and frequency. Grazing bifurcations introduce discontinuous transitions between different motions. It is also found that impacts dramatically change the characteristics of the frequency-response curve. Finally, we discuss the evolution of incomplete chatter to complete chatter, that is, sticking.
Recommended Citation
Xiaopeng Zhao, C. K. Reddy, and A. H. Nayfeh. "Nonlinear Dynamics of an Electrically Driven Impact Microactuator" Nonlinear Dynamics 40.3 (2005): 227-239.