Lightweight design for servo frame based on lattice material

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Jin, Xin^1 ; Li, Guoxi^1 ; Liu, Encai^1 ; Gong, Jingzhong^2

College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha

410073, China^1

School of Mechanical Engineering, Hunan International Economics University, Changsha

410205, China^2

关键词: Design objects;    FEA modeling;    FEA simulation;    Lattice materials;    Lightweight design;    Material modeling;    Performance requirements;    Standard specimens;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012035/pdf
DOI  :  10.1088/1757-899X/207/1/012035

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Lattice material infilling is an important way to achieve lightweight. Focusing on the problems of non-uniform arrangement and the finite element analysis (FEA) of lattice material in the parts, a lightweight design method based on lattice material is proposed with the spacecraft servo frame as the design object. Modal analysis and topology optimization are carried out according to the boundary conditions. The optimized density results are used to guide the design of lattice material parameters and arrangement. The equivalent mechanical properties of lattice material are obtained through the standard specimens experiments. The equivalent material FEA model of the lightweight servo frame is established, and the performance of the lightweight structure is tested by FEA simulation and experiment. The results show that under the impact condition, the lightweight servo frame meets the performance requirements and the simulation method through the equivalent material model is validated.