naa a22 4500 51082224X CHVBK 20180411083539.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s12541-013-0144-5 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0144-5 Heuristic optimization method for cellular structure design of light weight components [Elektronische Daten] [Jason Nguyen, Sang-in Park, David Rosen] Additive manufacturing can be used to produce structures which would be impossible to manufacture using traditional manufacturing processes. One application of this technology is for fabrication of customized, light-weight material called mesoscale lattice structure (MSLS), which is a type of cellular structure with dimensions in the range of 0.1 to 10 mm. The problem to be addressed in this paper is how to efficiently synthesize MSLS with thousands of struts and, hence, thousands of design variables. A heuristic optimization method is presented for efficiently synthesizing large MSLS on complex shaped parts that reduces the multivariate optimization problem to a problem of only two variables. The heuristic is based on the observation that the stress distribution in a MSLS will be similar to the stress distribution in a solid body of the same overall shape. Based on local stress states, unit cells from a predefined unit-cell library are selected and sized to support those stress states. In this paper, the method is applied to design a strong, stiff, and light-weight Micro Air Vehicle fuselage. Weight savings are demonstrated as a result. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Heuristic optimization method nationallicence CAD nationallicence Additive manufacturing nationallicence Cellular structure nationallicence Meso-scale lattice structure nationallicence Design nationallicence MSLS : Meso-Scale Lattice Structures nationallicence SMS : Size Matching and Scaling Method nationallicence CLS : Conformal Lattice Structures nationallicence Nguyen Jason The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA aut Park Sang-in The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA aut Rosen David The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA aut International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/6(2013-06-01), 1071-1078 2234-7593 14:6<1071 2013 14 12541 https://doi.org/10.1007/s12541-013-0144-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0144-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nguyen Jason The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA aut NATIONALLICENCE 700 1- Park Sang-in The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA aut NATIONALLICENCE 700 1- Rosen David The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/6(2013-06-01), 1071-1078 2234-7593 14:6<1071 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer