NDLI: On Evaluation of Adaptive Mask Overlay Topology Synthesis Method Using Different Mask Shapes

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Sharma, Pranay Saxena, Anupam
Copyright Year	2010
Abstract	Previous versions of the Material Mask Overlay Strategy (MMOS) for topology synthesis have primarily employed circular masks to simulate voids within the design region. MMOS operates on the photolithographic principle by appropriately positioning and sizing a group of negative masks to create voids within the design region and thus iteratively improve the material layout to meet the desired objective. The fundamental notion has been that a group of circular masks can represent a local void of any shape. Thus, circular masks, as opposed to those modeled using simple, non-intersecting, closed curves of generic shapes, have been employed. This paper investigates whether employing masks of more general shapes (e.g., any two-dimensional polygon) offers significant enhancements in efficiently attaining the appropriate topological features in a continuum. Here, performance of two other mask shapes, namely, elliptical and rectangular are compared with that of the circular masks. For fair comparison, two mean compliance minimization examples under resource constraints are solved as each design space is known to contain a unique minimum.
Sponsorship	Design Engineering Division and Computers in Engineering Division
Starting Page	665
Ending Page	674
Page Count	10
File Format	PDF
ISBN	9780791844106
DOI	10.1115/DETC2010-29109
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 Shapes Topology
Content Type	Text
Resource Type	Article

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