| 复合材料人形杆压扁过程数值模拟分析 |
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| 引用本文： | 杨慧,刘恋,刘荣强,刘永斌.复合材料人形杆压扁过程数值模拟分析[J].宇航学报,2019,40(5):570-576. |
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| 作者姓名： | 杨慧 刘恋 刘荣强 刘永斌 |
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| 作者单位： | 1. 安徽大学电气工程与自动化学院，合肥 230601；2. 哈尔滨工业大学机器人技术与系统国家实验室，哈尔滨 150080 |
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| 基金项目： | 国家自然基金青年基金（51605001）、国家自然科学基金重点项目(51835002)和安徽大学博士科研启动经费（J01003222） |
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| 摘 要： | 为了避免超弹性杆因应力集中而产生疲劳裂纹，延长其使用寿命，借助于ABAQUS软件，采用S4R壳单元和粘结单元，建立了人形杆复合材料压扁有限元模型。利用显示动力学法对人形杆压扁过程进行了非线性数值模拟分析，分析单一材料、两种材料铺层方式和不同铺层角度时人形杆各层应力特点，进而选取出应力最小的铺层方法。该研究对可展开机构中人形截面超弹性杆复合材料最佳铺层方式的合理选取具有重要意义。
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| 关 键 词： | 可折展机构 人形杆 压扁过程 显示动力学法 复合材料 |
| 收稿时间： | 2018-07-11 |
Numerical Simulation and Analysis on Flattening Process of Composite TRAC Boom |
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| YANG Hui,LIU Lian,LIU Rong qiang,LIU Yong bin.Numerical Simulation and Analysis on Flattening Process of Composite TRAC Boom[J].Journal of Astronautics,2019,40(5):570-576. |
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| Authors: | YANG Hui LIU Lian LIU Rong qiang LIU Yong bin |
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| Affiliation: | 1. College of Electrical Engineering and Automation, Anhui University, Hefei 230601, China; 2. State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China |
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| Abstract: | In order to avoid the fatigue crack because of the stress concentration of the hyper-elastic boom and prolong its service life, the flattening finite element model for a triangular retractable and collapsible(TRAC)boom is established by the ABAQUS software, the S4R shell unit and the cohesive bonding unit. The explicit dynamic method is used to carry out the non-linear numerical simulation analysis for the flattening process of the TRAC boom, with single material, layering manners of two materials and TRAC boom stress characteristics for different layering angles compared, the layering method with the least stress is selected. This study is of great significance for the reasonable selection of the optimal lamination method for a TRAC boom in a deployable mechanism. |
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| Keywords: | Deployable mechanism TRAC boom Flattening process Explicit dynamic method Composite material |
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