کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4963793 1447410 2017 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comprehensive study of feature definitions with solids and voids for topology optimization
ترجمه فارسی عنوان
یک مطالعه جامع از تعاریف ویژگی با جامدات و حفره ها برای بهینه سازی توپولوژی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
In this paper, we present a CAD-oriented and feature-driven topology optimization methodology for engineering structures with freeform design domains. Mixed solid-void features are adopted as basic design primitives to build a unified formulation of feature definition, while pure solid or pure void features are considered as two special cases. Topology optimization is achieved as a Boolean intersection process between the so-called topology variation modeler (TVM) and freeform design domain modeler (FDDM) in terms of level-set functions (LSFs). The TVMs constructed with solid and/or void features are applied to clip the FDDM through Boolean operations. It is shown that sensitivity analysis with boundary integral scheme is independent of the mathematical expressions of the LSF. Numerical problems with freeform and periodic design domains are dealt with to demonstrate the proposed topology optimization method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 325, 1 October 2017, Pages 289-313
نویسندگان
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