Optimisation of the deployment sequence of 2 Dof systems

Fenci, GE; Currie, NGR

Abstract

The methodology for the analysis of deployable structures with 2 degrees of freedom (DoF) and optimisation of the deployment sequence is proposed. A parametrically controlled geometry, based on the design of biomimetic deployable structures, is systematically cycled through all available combinations of deployment and analysed for the full range of available motion established by the two DoFs. In other words, structural analysis is carried out for all potential configurations for the 2 DoFs, which act independently from one another. The results are, then, automatically post-processed to give contour plots showing the change in performance criteria such as the force or moment that develops in the struc- ture during deployment. Knowing that the structure needs to deploy from the fully folded to the fully unfolded state, the generation of convex hull profiles allows the selection of the optimum path to reach the fully deployed state based on whatever the governing criteria is deemed to be, such as maximum deployment force, deflection, weight of structure, or in service stresses.

Citation

Fenci, G., & Currie, N. (2017). Optimisation of the deployment sequence of 2 Dof systems. International Journal of Computational Methods and Experimental Measurements, 5(4), 504-513. https://doi.org/10.2495/CMEM-V5-N4-504-513

• Journal Article Type: Article
• Acceptance Date: Aug 31, 2016
• Publication Date: Jan 1, 2017
• Deposit Date: May 5, 2017
• Publicly Available Date: Oct 25, 2017
• Journal: International Journal of Computational Methods and Experimental Measurements
• Print ISSN: 2046-0546
• Publisher: WIT Press
• Volume: 5
• Issue: 4
• Pages: 504-513
• DOI: https://doi.org/10.2495/CMEM-V5-N4-504-513
• Publisher URL: https://www.witpress.com/elibrary/cmem-volumes/5/4/1648
• Related Public URLs: https://www.witpress.com/journals/cmem
• Additional Information: Access Information : Article copyright WIT Press 2017, available at official URL above.