Evolved 2d pin-jointed truss.

Dec 16, 2003 3 Replies
T

Right, I'm trying to evolve a 2D pin-jointed truss using genetic algorithms...



So far I've written a program that and can analyse a truss to find the forces in the members (see attachment - colour indicates compression/tension, thickness represents force magnitude)...



Has anyone done this before? How could I generate the truss from a bitstring? I've had some ideas, but they were mostly not very good. Also, what would be a good method of evaluating the trusses fitness...



Thanks


-Tim



Can you cc replies to me... snipped-for-privacy@cam.ac.uk



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Z

There is a program called MDSolids that analyzes trusses, determinate beams columns, and more.

Rudi.R.

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B

As a figure of merit for trusses of a given length, you might consider total distributed load weight / truss total weight.

Brian W

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T

Hmmm... yeesss... Perhaps I could have a

double MemberCost(double AxialForce);

type function. That way I could model tensile members being cheaper and so on.

Also, is there a simple model for the relati> As a figure of merit for trusses of a given length, you might consider

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