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Alternative TitleDesign and Mechanics Analysis of an X-type Cross-section Tubular Boom
范文杰; 武林
Source Publication空间科学学报
Keyword管状伸杆 截面惯性矩 收拢高度 有限元模型
Other AbstractThe mechanics properties of different cross-section tubular boom are compared. The results show that TRAC cross-section has greater ratio of the area moment of inertia to packaged height than that of STEM and CTM section. However, the section thickness of TRAC is bigger than that of STEM and CTM, and the shear center doesn't coincide with the centroid, which lead to local bending and torsional buckling. A new cross-section XTEM is presented in this paper, which has two symmetry axes and the shear center coincides with the centroid. Finite element models of the four cross-section booms are built and the area moment of inertia is obtained respectively. The results also show that, with the same packaged height and the section thickness slightly increasing, the area moment of inertia in the two axial directions of XTEM have the increase of 77% and 35% to CTM, the increase of 30 and 6.7 times to STEM, respectively.
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GB/T 7714
范文杰,武林. 一种可收拢展开的X截面伸杆设计及力学性能分析[J]. 空间科学学报,2017,37(5):616-621.
APA 范文杰,&武林.(2017).一种可收拢展开的X截面伸杆设计及力学性能分析.空间科学学报,37(5),616-621.
MLA 范文杰,et al."一种可收拢展开的X截面伸杆设计及力学性能分析".空间科学学报 37.5(2017):616-621.
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