caa a22 4500 463243862 CHVBK 20180405153320.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s00158-006-0076-0 doi (NATIONALLICENCE)springer-10.1007/s00158-006-0076-0 Design of phononic materials/structures for surface wave devices using topology optimization [Elektronische Daten] [Cory Rupp, Anton Evgrafov, Kurt Maute, Martin Dunn] We develop a topology optimization approach to design two- and three-dimensional phononic (elastic) materials, focusing primarily on surface wave filters and waveguides. These utilize propagation modes that transmit elastic waves where the energy is contained near a free surface of a material. The design of surface wave devices is particularly attractive given recent advances in nano- and micromanufacturing processes, such as thin-film deposition, etching, and lithography, which make it possible to precisely place thin film materials on a substrate with submicron feature resolution. We apply our topology optimization approach to a series of three problems where the layout of two materials (silicon and aluminum) is sought to achieve a prescribed objective: (1) a grating to filter bulk waves of a prescribed frequency in two and three dimensions, (2) a surface wave device that uses a patterned thin film to filter waves of a single or range of frequencies, and (3) a fully three-dimensional structure to guide a wave generated by a harmonic input on a free surface to a specified output port on the surface. From the first to the third example, the resulting topologies increase in sophistication. The results demonstrate the power and promise of our computational framework to design sophisticated surface wave devices. Springer-Verlag Berlin Heidelberg, 2006 Waveguide nationallicence Wavefilter nationallicence Surface waves nationallicence Topology optimization nationallicence Rupp Cory Department of Mechanical Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut Evgrafov Anton Department of Aerospace Science and Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut Maute Kurt Department of Aerospace Science and Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut Dunn Martin Department of Mechanical Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut Structural and Multidisciplinary Optimization Springer-Verlag 34/2(2007-08-01), 111-121 1615-147X 34:2<111 2007 34 158 https://doi.org/10.1007/s00158-006-0076-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00158-006-0076-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rupp Cory Department of Mechanical Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut NATIONALLICENCE 700 1- Evgrafov Anton Department of Aerospace Science and Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut NATIONALLICENCE 700 1- Maute Kurt Department of Aerospace Science and Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut NATIONALLICENCE 700 1- Dunn Martin Department of Mechanical Engineering, University of Colorado at Boulder, 80309, Boulder, CO, USA aut NATIONALLICENCE 773 0- Structural and Multidisciplinary Optimization Springer-Verlag 34/2(2007-08-01), 111-121 1615-147X 34:2<111 2007 34 158 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer