Stability of Velocity Control for a Piezoelectric Stepper
| Autor: | Santosh Devasia, Scott Michael Wilcox |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Physics::Computational Physics
Engineering Physics::Instrumentation and Detectors business.industry Classification of discontinuities Piezoelectricity Computer Science Applications Computer Science::Robotics Nonlinear system Control and Systems Engineering Control theory Electrical and Electronic Engineering Stepper business |
| Zdroj: | IEEE/ASME Transactions on Mechatronics. 20:910-923 |
| ISSN: | 1941-014X 1083-4435 |
| DOI: | 10.1109/tmech.2014.2326396 |
| Popis: | This paper studies the velocity control of a large-range piezoelectrically actuated (piezo) stepper. The main contribution of this paper is to extend the Poincare-map approach for evaluating the stability of the stepper dynamics in the presence of Coulomb-friction nonlinearity, which has a jump discontinuity with velocity. Additionally, inversion of the stepper-dynamics model is used to find the piezo input for controlling the stepper velocity, and model-based predictions of the stepper velocity are evaluated using an experimental-stepper system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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