成果報告書詳細
管理番号20160000000658
タイトル*平成27年度中間年報 SIP(戦略的イノベーション創造プログラム)/革新的設計生産技術 迅速で創造的な製品設計を可能とするトポロジー最適化に基づく超上流設計法の開発(4) 
公開日2016/8/6
報告書年度2015 - 2015
委託先名株式会社豊田中央研究所
プロジェクト番号P14030
部署名IoT推進部
和文要約
英文要約Development of optimization method for thermal flow control structure on 3D surfaces:
Thermal flow control structure design method and fabrication method are extended to three dimensional structures. The vectorial topology optimization method for thermal conduction tensor was extended to shell structure in 3D coordinates using the finite element method and nonlinear programing method. Isotropic solid element-anisotropic shell element-coupled heat conduction model is built. The isoparametric projection method is also extended by using quadratic hexahedral serendipity element. The optimization method is successfully extended and optimal orientation distribution of anisotropic thermal conduction on surface of three dimensional objects can be obtained.

Development of anisotropic pattern generation algorithm on 3D surfaces:
The method for generating texture pattern which realizes anisotropic thermal coefficient tensor distribution obtained by former mentioned vectorial topology optimization method for thermal conduction problem was extended to three dimensional surfaces. The line integral convolution, LIC, algorithm is applied to the optimized vector field data to generate stream line visualized image data. In order to extend LIC to three dimensional surfaces, it was implemented by using finite element method. Then, Turing type reaction diffusion equation, is solved to generate evenly pitched line and space patterns along with the optimized vector field by giving the LIC image as initial solution. The Turing type reaction diffusion equation converges into a scalar field consists with two values, that is, high value and low value. By patterning high value domain with metal and low value domain with insulator, it is possible to realize heat conduction device. Additionally Turing pattern with anisotropic diffusion tensor is also tested for less dependency on initial pattern.

Research and investigation of new design and fabrication technologies:
Four international trips are made to research and investigate new design and fabrication technologies. Four presentations are made in some conference during the trips.
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