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Truss Design Optimization Based on Generative Algorithms

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Truss Design Optimization Based on Generative Algorithms

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Supplementary material for a WCSMO publication regarding truss design optimization.

D=TrussData(Coord, Con)
%Author: Ashish Khetan (khetan2@illinois.edu)
%Engineering System Design Lab,
%Industrial and Enterprise Systems Engineering, UIUC, IL, USA

% Copyright (c) 2013, Engineering System Design Lab (ESDL)
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function D=TrussData(Coord, Con) %Function to form structure corresponding to the given topology generated by the cellular division methodology

Re = zeros(size(Coord));  % Saves information whether the node is fixed or not corresponding to the standard ten bar truss
for i = 1:size(Coord,1)
    if((Coord(i,1)==0 && Coord(i,2)==0)||(Coord(i,1)==0 && Coord(i,2)==360))
        Re(i,:) =1;
    end
end
Load=zeros(size(Coord)); % Saves information of load at each node
% Load is applied at the nodes corresponding to the configuration of the
% standard ten bar truss
for i = 1:size(Coord,1)
    if((Coord(i,1)==720 && Coord(i,2)==0)||(Coord(i,1)==360 && Coord(i,2)==0))
        Load(i,:) =[0 -1e5];
    end
end
E=ones(1,size(Con,1))*1e7; % Saves information of Elasticity of the member connecting two nodes
Length = zeros(1,size(Con,1)); % Saves information corresponding to length of each bar member
D=struct('Coord',Coord','Con',Con','Re',Re','Load',Load','E',E','Length',Length);
for i=1:size(D.Con,2) % To calculate length of each bar member
   H=D.Con(:,i);C=D.Coord(:,H(2))-D.Coord(:,H(1));D.Length(i)=norm(C);
end
end

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