Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Dimensionless factors to design hydropneumatic suspension systems
Submission Author:
cuellar sanchez , DF
Co-Authors:
cuellar sanchez, Eugenio Fortaleza, André BENINE NETO
Presenter: cuellar sanchez
doi://10.26678/ABCM.COBEM2017.COB17-1450
Abstract
The degree of stability of classical hydropneumatic suspension systems is directly affected byvariations of sprung mass. Robustness of the degree of stability can be achieved by CRONE (french acronym for Fractional Order Robust Control) suspension, in which the damping coefficient becomes independent of variations of sprung mass. This article proposes dimensionless factors to develop a design methodology to recreate the physical parameters of CRONE and classical suspensions, considering significant changes of sprung mass and cutoff frequency. This methodology makes the procedure straightforward either for new users or for those unfamiliar to fractional order control theory or hydropneumatic suspensions. Furthermore, the theoretical expressions of the design factors are related with the design parameters. Numerical simulations confirm the equivalence of the suspensions designed through the regular process or based on the proposed dimensionless factors
Keywords
hydropneumatic suspension, crone suspension, dimensionless factor.
