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多材料、多約束、多負載情況下的拓撲優化
2019-06-06 11:30     (點擊: )

學術報告通知

報告題目:多材料、多約束、多負載情況下的拓撲優化

Topology Optimization with Multiple Materials, Multiple Constraints, and Multiple Load Cases

報告人:Xiaojia Zhang  助理教授  伊利諾伊大學

  間:2019611日(周二) 1400

  點:綜合實驗三號樓4405(會議室)

Abstract:

Topology optimization is a computational design tool for finding optimal layouts of structures and material microstructures. However, most work in this field has been restricted to single material with linear material behavior, limited volume constraint settings, and a single load case. To address these issues, we propose an efficient multi-material topology optimization formulation considering material nonlinearity. The proposed formulation handles an arbitrary number of candidate materials with flexible material properties, features freely specified material layers, and includes a generalized volume constraint setting. To efficiently handle such arbitrary volume constraints, we derive a novel design update scheme that performs robust updates of the design variables associated with each volume constraint independently. To obtain designs under many load cases, we also present a randomized approach that efficiently optimizes structures under hundreds of load cases. Through examples using combinations of various materials, we demonstrate that the proposed topology optimization frameworks with the aforementioned update scheme and randomized algorithm lead to design tools that not only find the optimal topology but also select the proper type and local distribution, with drastically reduced computational cost.

 

報告人簡介:

張曉佳(Xiaojia Shelly Zhang)博士kk彩票下载安装,伊利諾伊大學厄本納-香檳分校土木與環境工程系kk彩票下载安装、機械科學與工程系的助理教授。張曉佳博士獲得伊利諾伊大學厄本納---香檳分校的土木工程學士學位和碩士學位,獲得佐治亞理工學院的博士學位。她于2019年獲得了美國國家超級計算機應用中心(NCSA)的教授研究經費kk彩票下载安装,并分別于2018年kk彩票下载安装、2019年在佐治亞理工學院的土木工程學院和國際研究榮譽學會(Sigma Xi)獲得最佳博士論文獎kk彩票下载安装,2019年獲得了ASCE的土木工程教育優秀獎。她的研究重點是探索拓撲優化、隨機規劃和增材制造技術,以開發韌性、智能、可持續和創新的工程基礎設施和材料kk彩票下载安装,并應用于大到高層建筑,小到材料微觀結構的不同規模的研究對象中。

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