成果報告書詳細
管理番号20150000000559
タイトル*平成26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(2)
公開日2015/7/18
報告書年度2014 - 2014
委託先名株式会社豊田中央研究所
プロジェクト番号P14030
部署名ロボット・機械システム部
和文要約
英文要約Development of optimization method for thermal flow control structure:
In order to show the usefulness of the multiscale design methodology, a planar thermal flow control device design problem was investigated based on topology optimization. The vectorial topology optimization method was formulated for thermal conduction problem and the formulation was implemented using the finite element method and nonlinear programing method. The planar system with heat sources and heat protection area was prepared and the vectorial topology optimization method was applied in order to determine the optimal layout of anisotropic thermal conduction coefficient distribution. The method was successfully implemented and the optimal vector field to represent the orientation of principal direction of anisotropic thermal conductivity tensor was obtained.

Development of pattern generation algorithm for realization of vector field tensor distribution:
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 investigated. The line integral convolution, LIC, algorithm is applied to the optimized vector field data to generate stream line visualized image data. Then, Turing type reaction diffusion equation, RDE, is solved, which is known as self-replication algorithm, 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 RDE 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.

Development of evaluation system for thermal flow control device.
In order to evaluate the performance of developed thermal flow control device, an experiment set up is developed. The temperature boundary is realized with heather embedded aluminum block for hot side and copper block for cold side. A thermograph camera is prepared to capture the thermal image of the device for performance evaluation.

Research and investigation of new design and fabrication technologies:
Two international trips and 8 domestic trips are executed to research and investigate new design and fabrication technologies. A member had an international trip to Vienna to attend Vienna conference on mathematical modeling, MATHMOD 2015 to obtain latest update on new mathematical modeling study information. There are sessions on multiscale modeling and free boundary problems and it is found that the new analysis technology called ``identification’’ or ``systems of systems’’ is going to be important when we realize the developing methodology into real world system. We also collected many information on new design and fabrication technologies through with other domestic trips.
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