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http://dx.doi.org/10.7734/COSEIK.2014.27.4.313

A Comparison of the Form-Finding Method of Tensegrity Structures  

Lee, Seunghye (Department of Architectural Engineering, Sejong Univ.)
Lee, Jaehong (Department of Architectural Engineering, Sejong Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.27, no.4, 2014 , pp. 313-320 More about this Journal
Abstract
A tensegrity structure consists of a set of continuous cables in tension and a set of discontinuous struts in compression. The tensegrity structure can be classified into self-stressed and pre-stressed pin-jointed structure. A key step in the design of tensegrity structures is the determination of their equilibrium configuration, known as form-finding. In this paper, three effective methods are presented for form-finding of tensegrity structures. After performing form-finding process, a set of force density and corresponding topology results can be obtained. Then the force density method combined with a genetic algorithm is adopted to uniquely define a single integral feasible set of force densities. Numerical examples are presented that demonstrate the excellent performance of the algorithms.
Keywords
tensegrity structure; form-finding; force density method; genetic algorithm;
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