考虑稳定性约束的五零能模式材料结构设计方法研究
发布时间：2018-12-18 14:42
【摘要】：五零能模式材料是一种声学超材料,虽然它一般采用固体材料设计,并且单胞常应用微桁架构型,但理论上这种材料设计的结构是不稳定的.论文从分析设计结构整体出发,探讨一种通过施加预载荷,确保五零能模式材料结构稳定性的方法,并给出了保证结构稳定性的充分条件,且应用典型的五零能模式材料单胞构型加以验证.同时,为方便提出的稳定性条件在设计过程中的实施,将五零能模式材料结构的设计过程描述为五零能模式材料的变换过程,采用结构尺寸优化模型来描述.当材料单胞为微桁架构型时,这一结构尺寸优化模型简单,结构稳定性约束和五零能模式材料性质约束均为线性约束.
[Abstract]:The five-zero energy mode material is a kind of acoustical supermaterial. Although it is generally designed with solid material and the micro-truss configuration is often used in the unit cell, the structure designed by this material is unstable in theory. Based on the analysis and design of the whole structure, this paper discusses a method to ensure the structural stability of the material with five zero energy mode by applying preload, and gives the sufficient conditions to ensure the stability of the structure. And the typical five zero energy model material unit cell configuration was used to verify. At the same time, in order to facilitate the implementation of the proposed stability condition in the design process, the design process of the five-zero energy mode material structure is described as the transformation process of the five-zero energy mode material, and the structural size optimization model is used to describe the design process. When the material unit cell is a micro-truss configuration, the structure size optimization model is simple, the structural stability constraint and the material property constraint of the five-zero energy mode are linear constraints.
【作者单位】： 大连理工大学机械工程学院汽车工程学院;
【分类号】：TB34
本文编号：2385994
[Abstract]:The five-zero energy mode material is a kind of acoustical supermaterial. Although it is generally designed with solid material and the micro-truss configuration is often used in the unit cell, the structure designed by this material is unstable in theory. Based on the analysis and design of the whole structure, this paper discusses a method to ensure the structural stability of the material with five zero energy mode by applying preload, and gives the sufficient conditions to ensure the stability of the structure. And the typical five zero energy model material unit cell configuration was used to verify. At the same time, in order to facilitate the implementation of the proposed stability condition in the design process, the design process of the five-zero energy mode material structure is described as the transformation process of the five-zero energy mode material, and the structural size optimization model is used to describe the design process. When the material unit cell is a micro-truss configuration, the structure size optimization model is simple, the structural stability constraint and the material property constraint of the five-zero energy mode are linear constraints.
【作者单位】： 大连理工大学机械工程学院汽车工程学院;
【分类号】：TB34
【相似文献】
相关硕士学位论文 前2条
1 徐冰;五种五零能模式材料单胞构型及其性能分析[D];大连理工大学;2015年
2 张迎龙;五零能模式材料的坐标变换计算[D];大连理工大学;2014年
，本文编号：2385994
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