Vibration Analysis and Mitigation of Dead-Zone on Systems Using Two-Impulse Zero-Vibration Input Shaping

Autor:	Shashvat Prakash, William Singhose, Patrick W. Cross, Khalid Sorensen
Rok vydání:	2010
Předmět:	Vibration Engineering Control and Systems Engineering business.industry Control theory Input shaping Applied Mathematics Mechanical Engineering Linear system General Medicine Dead zone Impulse (physics) business
Zdroj:	Journal of Computational and Nonlinear Dynamics. 6
ISSN:	1555-1423 1555-1415
DOI:	10.1115/1.4001818
Popis:	Input shaping is an effective method for reducing oscillatory motion in linear systems. Many physical systems, however, exhibit discontinuous dynamics, such as saturation, rate limiting, backlash, and dead-zone. These hard nonlinearities can degrade the vibration reducing properties of shaped signals. This paper investigates the detrimental effects of dead-zone on a class of input-shaped commands. A mitigation strategy is proposed for reducing these detrimental effects when the value of the dead-zone can be estimated. The robustness of this mitigation approach to uncertainties in the dead-zone width is also determined. Theoretical developments are experimentally verified using an industrial 10 ton bridge crane.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a6aac8cf7ceecbbcb6ec7a3eba19a77e https://doi.org/10.1115/1.4001818 Zobrazit plný text záznamu