This paper presents a study on the concur- rent topology optimization of a structure and its material microstructure. A modified optimization model is proposed by introducing microstructure orientation angles as a new...This paper presents a study on the concur- rent topology optimization of a structure and its material microstructure. A modified optimization model is proposed by introducing microstructure orientation angles as a new type of design variable. The new model is based on the assumptions that a structure is made of a material with the same microstructure, and the material may have a different orientation within the design domain of the structure. The homogenization theory is applied to link the material and structure scales. An additional post-processing technique is developed for modifying the obtained design to avoid local optima caused by the use of orientation angle variables. Numerical examples are presented to illustrate the viabil- ity and effectiveness of the proposed model. It is found that significant improvement in structural performance can be achieved by optimizing the orientation of microstructures in concurrent topology optimization of structures and materials.展开更多
Yu Tang(唐瑜)Prof.Tang is a Cuiying Distinguished Professor at the College of Chemistry and Chemical Engineering,Lanzhou University,China.She received her Ph.D.from Lanzhou University in 1999 under the supervision of ...Yu Tang(唐瑜)Prof.Tang is a Cuiying Distinguished Professor at the College of Chemistry and Chemical Engineering,Lanzhou University,China.She received her Ph.D.from Lanzhou University in 1999 under the supervision of Prof.Minyu Tan(谭民裕)and has since dedicated her entire academic career to the institution.Her research focuses on rare earth coordination chemistry and functional materials,with an emphasis on smart luminescent systems and energy-related catalysis.She is a Fellow of the Chinese Chemical Society(FCCS)and the Royal Society of Chemistry(FRSC),UK,and a Distinguished Professor of the Changjiang Scholars Program,China.展开更多
基金supported by the State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, China (Grant GZ1305)
文摘This paper presents a study on the concur- rent topology optimization of a structure and its material microstructure. A modified optimization model is proposed by introducing microstructure orientation angles as a new type of design variable. The new model is based on the assumptions that a structure is made of a material with the same microstructure, and the material may have a different orientation within the design domain of the structure. The homogenization theory is applied to link the material and structure scales. An additional post-processing technique is developed for modifying the obtained design to avoid local optima caused by the use of orientation angle variables. Numerical examples are presented to illustrate the viabil- ity and effectiveness of the proposed model. It is found that significant improvement in structural performance can be achieved by optimizing the orientation of microstructures in concurrent topology optimization of structures and materials.
文摘Yu Tang(唐瑜)Prof.Tang is a Cuiying Distinguished Professor at the College of Chemistry and Chemical Engineering,Lanzhou University,China.She received her Ph.D.from Lanzhou University in 1999 under the supervision of Prof.Minyu Tan(谭民裕)and has since dedicated her entire academic career to the institution.Her research focuses on rare earth coordination chemistry and functional materials,with an emphasis on smart luminescent systems and energy-related catalysis.She is a Fellow of the Chinese Chemical Society(FCCS)and the Royal Society of Chemistry(FRSC),UK,and a Distinguished Professor of the Changjiang Scholars Program,China.
