Research on Pressurized Structure Based on Lattice Truss Sandwich

被引：0
|
作者：
Liming S. [1 ]
Linling L. [1 ]
Heyuan W. [2 ]
Yuhua X. [2 ]
Xiaoyu Z. [1 ]
机构：
[1] Beijing Institute of Spacecraft System Engineering, Beijing
[2] IWM, RWTH, Aachen
来源：
Advances in Astronautics Science and Technology | 2022年 / 5卷 / 4期
关键词：
Additive manufacturing; Equivalent elastic; Lattice truss sandwich structure; Pressurized structure; Size effect;
D O I：
10.1007/s42423-022-00129-1
中图分类号：
学科分类号：
摘要：
Due to the high specific strength and specific stiffness of the lattice structure, it has been widely used in aerospace and other fields. Aiming at the lightweight requirements of spacecraft, a research on the lightweight design of the pressurized structure is carried out based on lattice truss sandwich. An axisymmetric cell structure and arrangement method is proposed, which can improve the structural bearing efficiency under internal pressure load, reduce the structure weight and ensure the consistency of deformation. At the same time, the influence of the parameters of the lattice sandwich structure on the performance of the structure is analyzed by numerical simulation. The size effect of the pressured structure is analyzed, and the equivalent methods for different structures are evaluated. The calculation results of the equivalent model are verified, and the results are proved to be credible, which can greatly reduce the computational cost and time to meet the requirements of engineering applications. © 2022, Chinese Society of Astronautics.
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收藏
页码：415 / 422
页数：7
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