A New Control Algorithm for Hydraulic Universal Testing Machine Based on Extenics

Author

Li, Yanfang

Author_Institution

Ningbo Dahongying Coll., Ningbo, China

fYear

2012

fDate

3-5 Nov. 2012

Firstpage

681

Lastpage

684

Abstract

The purpose of this study is to investigate a new control algorithm for hydraulic universal testing machine based on extenics. As the variable stiffness of testing specimen affects load stiffness, the theoretical analysis and simulation study of the effect of variable load stiffness on the system were investigated. The degree and tendency of the effect of variable load stiffness on the control quality and accuracy are given. Furthermore, a new extension control algorithm for hydraulic universal testing machine was presented in this paper. The results show that this new control strategy can solve the problems of variable structure parameters of hydraulic universal testing machine, and can realize switch smoothly in variable control modes.

Keywords

elasticity; hydraulic systems; mechanical testing; variable structure systems; control accuracy; control quality; extenics; extension control algorithm; hydraulic universal testing machine; testing specimen; variable control mode switching; variable load stiffness effect; variable structure parameter problems; Algorithm design and analysis; Control systems; Correlation; Eigenvalues and eigenfunctions; Machine control; Materials testing; control strategy; extenics; hydraulic universal testing machine; variable load stiffness;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Communication Networks (CICN), 2012 Fourth International Conference on

Conference_Location

Mathura

Print_ISBN

978-1-4673-2981-1

Type

conf

DOI

10.1109/CICN.2012.21

Filename

6375199