Application of hybrid force/position control on parallel machine for mechanical test. (February 2018)

• Record Type: Journal Article
• Authors: Le Flohic, Julien; Paccot, Flavien; Bouton, Nicolas; Chanal, Hélène
• Is Part Of: Mechatronics. Volume 49(2018)
• Page Start: 168
• Page End: 176
• Publication Date: 2018-02
• Subjects: Parallel machine -- Hybrid control -- Testing machine -- Multi-axial test -- Model; Computer integrated manufacturing systems -- Periodicals; Flexible manufacturing systems -- Periodicals; Mechatronics -- Periodicals; Productique -- Périodiques; Fabrication, Systèmes flexibles de -- Périodiques; Mécatronique -- Périodiques; Computer integrated manufacturing systems; Flexible manufacturing systems; Mechatronics; Periodicals; 629.89
• DOI: 10.1016/j.mechatronics.2017.12.006
• Languages: English
• ISSNs: 0957-4158

Abstract

Abstract: The quality of mechanical test is strongly linked to the control of boundary conditions and loaded tool path in applied forces or displacement of a tested specimen. In this article, a hybrid force/position control algorithm is adapted to parallel kinematic mechanical test machine with regards to the tested specimen behavior and realized mechanical test. This control algorithm is illustrated on a Nooru–Mohammed test performed on Gough Stewart platform and validated experimentally on a 5 bar parallel mechanism. The principle of the Nooru–Mohamed test consists in submitting a double notched concrete test part to a position slope, inducing a combination of shear and tension loading. The extra degrees of freedom of the parallel machine are used to control boundary conditions.