Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7538
Title: Design of anti-parallelogram loop assemblies
Authors: Gür, Şebnem
Korkmaz, Koray
Kiper, Gökhan
Keywords: Anti-parallelogram loop
Deployable structures
Loop assembly method
Scissor mechanisms
Publisher: Int. Association for Shell and Spatial Structures
Source: Gür, Ş., Korkmaz, K., and Kiper, G. (2019). Design of anti-parallelogram loop assemblies. Journal of the International Association for Shell and Spatial Structures, 60(3), 232-240. doi:10.20898/j.iass.2019.201.006
Abstract: Scissor mechanisms are frequently used for deployable structures and many studies have been conducted on the subject. Most of the studies consider scissor units as modules in the design process. An alternative approach is to utilize loops as the modules for design. In this paper, the design alternatives of single degree-of-freedom planar linkages comprising anti-parallelogram loops using the loop assembly method is presented. First, scissor mechanisms are reviewed. Next, the types of four-bar loops and the resulting linkages in the literature are introduced and those which are yet to be explored, anti-parallelogram being one of them, are identified. Then the loop assembly method and the examples in the literature are reviewed. As a method to form as many alternatives as possible, symmetry operations are proposed. Suitable frieze symmetry groups utilized for obtaining the assemblies are explained and the anti-parallelogram loop patterns are derived. Next, the single degree-of-freedom linkages are obtained from the loop assemblies. Finally, a selection of the resulting linkages with novel properties are presented. This study shows that loop assemblies are efficient in systematic type synthesis of scissor linkages, some types of which could not be foreseen by using units as modules.
URI: https://doi.org/10.20898/j.iass.2019.201.006
https://hdl.handle.net/11147/7538
ISSN: 1028-365X
1028-365X
1996-9015
Appears in Collections:Architecture / Mimarlık
Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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