Space deployable parabolic reflector based on shape memory polymer composites

被引：20

作者：

Ming, Guangqing ^{[1
]}

Liu, Liwu ^{[2
]}

Liu, Yanju ^{[2
]}

Leng, Jinsong ^{[1
]}

机构：

[1] Harbin Inst Technol HIT, Ctr Composite Mat & Struct, POB 3011, 2 Yikuang St, Harbin 150080, Peoples R China

[2] Harbin Inst Technol HIT, Dept Astronaut Sci & Mech, POB 301, 92 West Dazhi St, Harbin 150001, Peoples R China

来源：

COMPOSITE STRUCTURES | 2023年 / 304卷

基金：

中国国家自然科学基金;

关键词：

Deployable reflector; Parabolic reflector; Shape memory polymers; Composites; Finite element analysis; THERMOVISCOELASTIC MODEL; RELAXATION MECHANISMS;

D O I：

10.1016/j.compstruct.2022.116327

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, a deployable parabolic reflector based on epoxy-based shape memory polymer (SMP) is investi-gated. A deployable SMP composite parabolic reflector with a diameter of 400 mm is designed and fabricated according to laboratory equipment conditions. The storage ratio and collapsed surface curvature of the three folding patterns are compared using finite element analysis (FEA). Then FEA is used to analyze the reflector's folding and deploying process by investigating the shape memory behaviors during these two processes as well as predicting the deploying time. Finally, the reflector folding and deploying tests are completed. The reflector's shape fixation ratio, recovery ratio, and deploying time are measured to verify this pattern's feasibility and rationality.

引用

页数：10

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