Creating Models of Truss Structures with Optimization

Jeffrey Smith	Jessica K. Hodgins	Irving Oppenheim	Andrew Witkin

ACM Transactions on Graphics / SIGGRAPH (2002)

We present a method for designing truss structures, a common and complex category of buildings, using non-linear optimization. Truss structures are ubiquitous in the industrialized world, appearing as bridges, towers, roof supports and building exoskeletons, yet are complex enough that modeling them by hand is time consuming and tedious. We represent trusses as a set of rigid bars connected by pin joints, which may change location during optimization. By including the location of the joints as well as the strength of individual beams in our design variables, we can simultaneously optimize the geometry and the mass of structures. We present the details of our technique together with examples illustrating its use, including comparisons with real structures.

Jeffrey Smith, Jessica K. Hodgins, Irving Oppenheim, Andrew Witkin (2002). Creating Models of Truss Structures with Optimization. ACM Transactions on Graphics / SIGGRAPH, 21(3), 295--301.

@article{Smith:2002:Truss,
author = {Jeffrey Smith and Jessica K. Hodgins and Irving Oppenheim and Andrew Witkin},
title = {Creating Models of Truss Structures with Optimization},
year = "2002",
month = jul,
journal = "ACM Transactions on Graphics / SIGGRAPH",
volume = "21",
number = "3",
pages = "295--301",
image = {http://graphics.cs.cmu.edu/i/leftbar/homestead.jpg},
}