Design and optimization of large deployable mechanism constructed by Myard linkages

Design and optimization of large deployable mechanism constructed by Myard linkages
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Myard连杆机构大型可展开机构的设计与优化

DOI:
10.1007/s12567-013-0036-7
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发表时间:
2013-05
期刊:
影响因子:
1.4
通讯作者:
Guo, Hongwei
Guo, Hongwei
中科院分区:
--
文献类型:
--
作者:
Qi, Xiaozhi;Deng, Zongquan;Li, Bing;Liu, Rongqiang;Guo, Hongwei

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大型可展开机构由一组基本的可展开单元组成,广泛应用于航空航天工业中,如可展开的桅杆、天线、太阳能电池板等。Myard连杆机构具有一个自由度,可展开为平面构型,可折叠成紧凑束,可作为构建大型可展开机构的基本单元。本文提出了两种多单元移动装配方法,并对新型可展开机构进行了运动性分析。在iSIGHT集成设计环境中对可展开机构进行了参数优化设计。所提出的可展开机构朝着最大化基频和最小化结构重量的目标进行了优化,以提高其刚度。样机由有限的可展开单元构成,并初步验证了可展开和可折叠的特性。
Large deployable mechanisms (LDMs), which consist of a set of basic deployable units, are widely used in aerospace industries, such as deployable masts, antennas, solar panels, etc. The Myard linkage with one degree of freedom can deploy to a planar configuration and fold to a compact bundle, can be used as the basic unit to build the LDM. In this paper, two mobile assembly methods of multi-units are proposed, and the mobility analysis of the novel deployable mechanism is developed. Parametric optimization for the deployable mechanism in an integrated design environment of iSIGHT is developed. The proposed deployable mechanism is optimized toward the goal of maximizing the fundamental frequency and minimizing the structural weight to enhance its stiffness. The prototype is constructed with limited deployable units and the deployable and foldable characteristics are initially verified.
DOI: 10.1098/rspa.2007.0188
发表时间: 2008-05
期刊: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
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