Analysis of Nonlinear Sustained Oscillations in Discrete Systems with Backlash and Resolution by Using a Discretization-Oriented Describing Function

Authors

M. de la Sen
A. Pena
J. Esnaola

DOI

-

Abstract

In this paper, a discretization-oriented describing function is derived for nonlinear devices combining backlash and quantization (resolution) while being subject to discretization through a sampler and zero-order hold. Such a describing function is frequency-dependent so that the overall nonlinearity, which includes both resolution and backlash, is interpreted as possessing nonlinear inertia. That nonlinear inertia is generated by the sampling process, since it does not appear if the system is continuous. The presence of nonlinear sustained oscillations (limit cycles) is investigated through simulations.

Keywords

Backlash, describing function, resolution

First Page

49

Last Page

60

Recommended Citation

Sen, M. de la; Pena, A.; and Esnaola, J. (1998) "Analysis of Nonlinear Sustained Oscillations in Discrete Systems with Backlash and Resolution by Using a Discretization-Oriented Describing Function," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 6: No. 1, Article 5. Available at: https://journals.tubitak.gov.tr/elektrik/vol6/iss1/5