Shape and force control of cable structures with minimal actuators and actuation

Najmadeen Saeed; Ahmed Manguri; Abubakr Adabar

doi:10.1177/09560599211045851

Shape and force control of cable structures with minimal actuators and actuation

Abstract

Shape adjustment and stress control can be considered as one of the effective parameters in prestressed cable structures since such structures are widely constructed nowadays due to their characteristics. The assembly errors and applied loads hugely affect the cables’ nodal positions and stress due to their delicacy. The former could disturb the shape, which affects the appearance and the function of the structure. In contrast, the latter may increase the stress in some cables above the upper limit or induce slack in some others. Accordingly, a technique has been proposed that combined fmincon optimization that relies on four different algorithms with a controlling approach based on the force method. The presented method aims to minimize the total amount of actuation and miniaturize the number of actuators. The targets of previously confirmed techniques can be obtained with less actuation and fewer actuators by using the current technique. Based on the verified examples, the advantage of the current approach over the quoted methods is up to 55% and 37% in terms of the number of actuators and the total amount of actuation, respectively.

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Keywords

SHAPE CONTROL, STRESS CONTROL, OPTIMIZATION, ACTUATION, CABLE STRUCTURES, PRESTRESS

Details

Category:: Articles
Type:: artykuły w czasopismach
Published in:: International Journal of Space Structures no. 36, pages 241 - 248,
ISSN: 0956-0599
Language:: English
Publication year:: 2021
Bibliographic description:: Saeed N., Manguri A., Adabar A.: Shape and force control of cable structures with minimal actuators and actuation// International Journal of Space Structures -Vol. 36,iss. 3 (2021), s.241-248
DOI:: Digital Object Identifier (open in new tab) 10.1177/09560599211045851
Verified by:: Gdańsk University of Technology