Structures exhibiting band gap properties, i.e., having frequency ranges for which the structure attenuates propagating waves, have applications in damping of acoustic and elastic wave propagation and in optical communication. A topology optimization method for synthesis of such structures, employing a time domain formulation, is developed. The method is extended to synthesis of pulse converting structures with possible applications in optical communication.
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Dahl, J., Jensen, J.S. & Sigmund, O. Topology optimization for transient wave propagation problems in one dimension. Struct Multidisc Optim 36, 585–595 (2008). https://doi.org/10.1007/s00158-007-0192-5
- Topology optimization
- Transient problems
- Adjoint sensitivity analysis
- Wave propagation