کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4963701 1364967 2018 21 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Computational design and additive manufacturing of periodic conformal metasurfaces by synthesizing topology optimization with conformal mapping
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Computational design and additive manufacturing of periodic conformal metasurfaces by synthesizing topology optimization with conformal mapping
چکیده انگلیسی

In this paper, we present a computational framework for computational design and additive manufacturing of free-form periodic metasurfaces. The proposed scheme rests on the level-set-based topology approach and the conformal mapping theory. A metamaterial with pre-specified performance is created using a level-set-based topology optimization method. The achieved unit cell is further mapped to the 3D quad meshes on a free-form surface by applying the conformal mapping method which can preserve the local shape and angle during the mapping. With embedded geometric information, the proposed level-set-based optimization methods not only can act as a motivator for design synthesis, but also can be seamlessly hooked with additive manufacturing without the need of CAD reconstructions. The current computational framework provides a solution to increasing applications involving innovative metamaterial designs on free-form surfaces for different fields of interests. The performance of the proposed scheme is illustrated through two benchmark examples where a negative-Poisson's-ratio unit cell pattern, and a stiff and light inner structure are mapped to 3D free-form surfaces and fabricated through additive manufacturing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 328, 1 January 2018, Pages 477-497
نویسندگان
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