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Coiling dynamic analysis of thin-walled composite deployable boom

机译：薄壁复合材料可伸缩臂的卷动分析

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摘要

Thin-walled composite deployable structures are an attractive solution for many aerospace missions, especially when large configurations are required. This paper investigates the feasibility of coiling an ultra-thin composite boom into a small deployment system. Detailed simulation of the coiling process of a C-section boom made from a two-ply laminate of carbon fiber reinforced plastic was performed using non-linear explicit dynamic analysis. A complete description of the analysis parameters that control the numerical stability of the simulation, and of the boundary conditions and loads adopted to perform the folding process are reported within this paper. The simulation is divided into two consecutive stages: the flattening of the boom, and the coiling inside the deployment device. The accuracy of the results is verified using energy balance assessments, and the structural strength of the boom is evaluated via three specific failure criteria. A parametric analysis of geometrical parameters was carried out in order to find out the slot configuration allowing the boom to fold without reaching its failure.
机译：薄壁复合材料可展开结构是许多航空航天任务的一种有吸引力的解决方案，尤其是在需要大型配置时。本文研究了将超薄复合吊杆卷成小型展开系统的可行性。使用非线性显式动态分析，对由碳纤维增强塑料的两层层压板制成的C型悬臂的卷绕过程进行了详细的仿真。在本文中，报告了对控制模拟数值稳定性的分析参数以及进行折叠过程所采用的边界条件和载荷的完整描述。模拟分为两个连续的阶段：动臂的展平和展开装置内部的盘绕。使用能量平衡评估来验证结果的准确性，并通过三个特定的破坏准则来评估吊臂的结构强度。为了找到允许动臂折叠而不会发生故障的狭槽构型，对几何参数进行了参数分析。

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  • 来源
    《Composite Structures》 |2014年第7期|429-436|共8页
  • 作者

    A. Stabile; S. Laurenzi;

  • 作者单位

    Department of Astronautic, Electrical and Energy Engineering, Sapienza University of Rome, Italy Surrey Space Centre, Department of Electronic Engineering, University of Surrey, Guildford, UK;

    Department of Astronautic, Electrical and Energy Engineering, Sapienza University of Rome, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Coiling; Thin-walled composites; Deployable structures; FEM analysis; Space structures; Composites;

    机译：卷取薄壁复合材料;可部署结构;有限元分析;空间结构;复合材料;

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