Cellular growth algorithms for shape design of truss structures

Authors:
Colin E. Tschida;Larry M. Silverberg
Affiliations:
Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695-7910, USA;Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695-7910, USA
Venue:
Computers and Structures
Year:
2013

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Abstract

This paper introduces a novel approach to truss structure shape design, drawing inspiration from biological processes, that treats each joint or member of a truss as a cell and the entire truss as a multicellular organism. The approach mimics plant tropisms in which, through cellular growth, cells change their size and shape in response to scripted gene commands. Examples illustrate the effectiveness of the approach; it is shown to produce arching and double-arching of pinned-pinned trusses, bulging of cantilever trusses and a plant-like tropic response.