Metamorphic Development
A new topology optimization method for continuum structures
J.S. Liu (University of Cambridge)
Geoffrey T. Parks (University of Cambridge)
P. John Clarkson (University of Cambridge)
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Abstract
An effective optimization procedure for finding structural shapes and topologies that minimize structural compliance and weight subject to stress and deflection constraints is presented. This new approach, called `Metamorphic Development' (MD), can allow a structure to grow and degenerate towards an optimum topological layout. In this method, the optimization can start from the simplest possible geometry (layout) or any degree of development of the structure rather than from a complex ground mesh. The structure is then developed metamorphically using rectangular and triangular elements that can be of any specified sizes. Examples demonstrate the potential of the MD optimization procedure to generate innovative solutions to structural design problems. Results are given and the growth and degeneration histories during optimization are illustrated.
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