NDLI: On an Adaptive Mask Overlay Topology Synthesis Method

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Saxena, Anupam
Copyright Year	2010
Abstract	A stochastic topology design approach is presented that yields binary, well connected continua. Inspired by the well known photolithographic technique used in the fabrication of micro-components, a number of negative-masks are appropriately laid over the design region to simulate voids. A unique feature is the effective use of the masks. In addition to their position and sizes, the number of circular masks is adaptively determined in each step of the optimization process. Thus, not only the void shapes but also their number is varied. The proposed method is significantly efficient compared to the previous implementations [21] and [23] and requires much less computational effort to yield good solutions. The honeycomb parameterization employed eliminates all subregion connectivity anomalies by ensuring edge connectivity throughout. Boundary smoothening is performed as a preprocessing step to moderate the notches, and to obtain an honest evaluation of a candidate design. Thus, both material and contour boundary interpretation steps are no longer required when post-processing the synthesized solutions. Various features of the method are demonstrated through the synthesis examples of small deformation compliant mechanisms.
Sponsorship	Design Engineering Division and Computers in Engineering Division
Starting Page	675
Ending Page	684
Page Count	10
File Format	PDF
ISBN	9780791844106
DOI	10.1115/DETC2010-29113
e-ISBN	9780791838815
Volume Number	Volume 2: 34th Annual Mechanisms and Robotics Conference, Parts A and B
Conference Proceedings	ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2010-08-15
Publisher Place	Montreal, Quebec, Canada
Access Restriction	Subscribed
Subject Keyword	Overlays (materials engineering) Design Deformation Topology Compliant mechanisms Manufacturing Shapes Honeycomb structures Optimization
Content Type	Text
Resource Type	Article

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