Structural optimization of shape adaptive structures

形状自适应结构的结构优化

• 批准号: 189566908
• 负责人: Professor Dr.-Ing. Kai-Uwe Bletzinger
• 金额: --
• 依托单位: Lehrstuhl für Statik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/189566908?language=en
• 关键词: Structural; optimization; shape; adaptive; structures

In the second phase of the project "structural optimization of shape adaptive structures" the methods which were developed in the first project phase should be applied to more complex structures. While in the first phase the general kinematic behavior of shell structures was in focus, we want to investigate structures with several shapes of self-equilibrium in this project phase. As these structures are usually characterized by a highly nonlinear structural behavior, the numerical methods of optimization have to be combined with those of the path following strategies known from nonlinear structural analysis. The use of this kind of structures in the field of adaptive structures looks very promising, as the exploitation of several shapes of self-equilibrium reduces the energy consumption to the change in between these shapes, while the maintaining of the shape is done without any effort, and so the energy consumption of this kind if structures would decrease to a minimum.In another research topic the optimal usage of piezoelectric material in the context of adaptive structures should be discussed. Here the active as well as the passive interaction in between the electric field and the mechanic deformation has to be considered.

在项目“形状自适应结构的结构优化”的第二阶段中，在第一个项目阶段开发的方法应应用于更复杂的结构。虽然在第一阶段，壳结构的一般运动学行为是重点的，但我们希望在此项目阶段研究具有几种自我平衡形状的结构。由于这些结构通常以高度非线性的结构行为为特征，因此优化的数值方法必须与从非线性结构分析中知道的策略相结合的结构。在自适应结构领域中这种结构的使用看起来非常有希望，因为对自我平衡的几种形状的剥削会减少这些形状之间的能量消耗到这些形状之间的变化，而保持形状的维持，而在没有任何努力的情况下，这种能量消耗均可减少这种结构的能量消耗，如果结构将降低到最小值的情况下。讨论。在这里，必须考虑电场和机械变形之间的主动和被动相互作用。

项目成果

Parameter free structural optimization applied to the shape optimization of smart structures

无参数结构优化应用于智能结构的形状优化

• DOI: 10.1016/j.finel.2015.12.008
• 发表时间: 2016
• 期刊: Finite Elements in Analysis and Design
• 影响因子: 3.1
• 作者: Masching;Bletzinger
• 通讯作者: Bletzinger