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优化微结构
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  “优化微结构”译为未确定词的双语例句
     2. By theory analysis and model proposed, the superhydrophobicty mechanism of anti-sticking films, which is further described.
     2.通过理论分析和模型构建,进一步定量刻画了具有优化微结构的不粘薄膜超疏机理。
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     High-quality βsialon ceramic powders were synthesized by carbothermal reduction nitridation (CRN) using clay mineral as primary raw materials. The thermodynamic reaction mechanism, phase composition and microstructure of the materials, as well as the optimization of its process under multi-variable coupling participation were investigated.
     以粘土矿物为主要原料,采用碳热还原氮化工艺制备出高品质βsialon陶瓷粉体,并对多因素耦合状态下材料合成的工艺优化,微结构与相组成以及热力学反应机理作了系统研究。
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  相似匹配句对
     Structure Optimization
     结构优化
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     Optimizing design of micro-structure gas sensor
     结构气体传感器的优化设计
短句来源
     Structural optimization of coil clamp
     夹钳的结构优化
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     Microstructure Optics
     结构光学
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     PHOTONICS MICROST RUCTURE
     光子学结构
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  optimal microstructure
As an optimal microstructure of pipeline steels, acicular ferrite is widely found in steels used in oil and gas pipeline transportation because it possesses both high strength and good toughness.
      
The purpose of this article is to discuss some properties of optimal microstructure that are used in the homogenization approach for structural optimization problems involving compliance as the design criterion.
      
We also prove in this case that any optimal microstructure is degenerate, like the rank-2 layered material, i.e.
      
The necessary conditions show that an optimal design is characterized by three zones: Zone 1 of pure weak Material 1; Zone 2 of pure strong Material 2; and Zone 3, where Material 1 and Material 2 mix to form an optimal microstructure.
      
An optimal microstructure always exists within the class of layered mixtures.
      
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In conjunction with the homogenization method and the finite element method, two computational models are suggested to design the periodic microstructures of composite. Model 1 addresses the problem of finding the optimal representative microstructural element that maximizes linear combintion of the equivalent elastic properties, model 2 is about the problem of finding the stiffest microstructure for a multi-load situation. Optimal microstructures obtained through the new models and homogenization method can...

In conjunction with the homogenization method and the finite element method, two computational models are suggested to design the periodic microstructures of composite. Model 1 addresses the problem of finding the optimal representative microstructural element that maximizes linear combintion of the equivalent elastic properties, model 2 is about the problem of finding the stiffest microstructure for a multi-load situation. Optimal microstructures obtained through the new models and homogenization method can be used to improve and optimize naturally occurring or man-made materials. In order to be more practical for engineering applications, cellular materials rather than ranked material are used in optimal process in the existence of optimal bounds for the elastic properties. The optimal results show that the two models with the numerical technique are effective in obtaining composite with extremal elastic properties or extremal rigidity.

提出复合材料周期性线弹性微结构拓扑优化设计的模型 .模型 1设计具有极值弹性特性的复合材料 ,模型 2设计多工况最刚微结构单胞 .通过该模型和均匀化技术可以获得优化的微结构单胞 ,进而改善或者得到最优宏观特性的复合材料 .为了便于制造和应用 ,用胞体材料而不是多相材料来得到复合材料的极值弹性特性和最大刚度 .优化结果表明 ,该模型与数值方法相结合可以有效地实现微结构的拓扑优化设计 .

One computational model for topology optimization of periodic microstructures of cross-section of composite torsional shafts is presented in this paper. The new model addresses the problem of finding the optimal representative microstructural element that maximizes linear combination of the equivalent shear properties. Optimal microstructure obtained through the new models and homogenization method can be used to improve and optimize naturally occurring or man-made materials. In order to be more practical for...

One computational model for topology optimization of periodic microstructures of cross-section of composite torsional shafts is presented in this paper. The new model addresses the problem of finding the optimal representative microstructural element that maximizes linear combination of the equivalent shear properties. Optimal microstructure obtained through the new models and homogenization method can be used to improve and optimize naturally occurring or man-made materials. In order to be more practical for engineering applications, cellular materials rather than ranked material are used in optimal process in the existence of optimal bounds for the elastic properties. The final optimal results show that the approach with the numerical technique are very effective in obtaining composite with extremal constitutive properties.

提出复合材料扭转轴截面微结构拓扑优化设计新模型,模型的优化目标是获得具有最大宏观剪切特性加权和的单胞形式.通过模型和均匀化方法及优化技术可以获得优化的微结构单胞,进而改善或者得到最优宏观弹性特性的复合材料.为了便于制造和应用,胞体材料用来获得复合材料的极值剪切模量.最后的优化结果表明,该模型连同数值处理技巧可以非常有效地实现微结构的拓扑优化设计.

A new method is presented for thermal conductive microstructures of composite materials based on the technique of homogenization method and topology optimization.From the mathematical formulation of ef- fective thermal conductivity for periodic microstructures,the effective conductivity matrix is evaluated by means of the finite element method.By defining the pseudo-density variable of each element in the design do- main and constraining the total material cost,a topology optimization model with SIMP method...

A new method is presented for thermal conductive microstructures of composite materials based on the technique of homogenization method and topology optimization.From the mathematical formulation of ef- fective thermal conductivity for periodic microstructures,the effective conductivity matrix is evaluated by means of the finite element method.By defining the pseudo-density variable of each element in the design do- main and constraining the total material cost,a topology optimization model with SIMP method is built to max- imize either the effective thermal conductivity of the microstructure in specified directions or the thermal con- duction efficiency of the macrostructure.The sensitivity of the objective function is then given.The optimal solution can be obtained by means of the dual optimization algorithm and perimeter constraint.Numerical re- sults verify the validity of the proposed topology optimization method in the thermal conduction design of the microstructures.

基于均匀化理论和拓扑优化技术,提出了复合材料稳态导热性微结构构型的设计方法。根据均匀化理论给出的周期性材料微结构(单胞)等效导热系数的计算公式,结合有限元分析手段对单胞的等效导热系数求解;定义设计区域内微结构每个单元的导热系数为伪密度设计变量,约束材料用量,分别以材料微结构某个方向导热性能最好为目标和宏观结构的散热性能最佳为目标;采用实体各向同性惩罚函数法(SIMP)构造单胞拓扑结构优化数学模型,导出材料等效导热系数的灵敏度计算公式;采用凸规划对偶求解与周长控制约束相结合进行拓扑优化并获得了优化的微结构构型,数值算例结果验证了所提出的拓扑优化方法可以有效地进行复合材料微结构的导热性能设计。

 
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