Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimization of gridshell bar orientation using a simplified genetic
  approach   Gridshells are defined as structures that have the shape and rigidity of a
double curvature shell but consist of a grid instead of a continuous surface.
This study concerns those obtained by elastic deformation of an initially flat
two-way grid. This paper presents a novel approach to generate gridshells on an
imposed shape under imposed boundary conditions. A numerical tool based on a
geometrical method, the compass method, is developed. It is coupled with
genetic algorithms to optimize the orientation of gridshell bars in order to
minimize the stresses and therefore to avoid bar breakage during the
construction phase. Examples of application are shown.

19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga