Biomimetic skeleton structure of morphing nose cone for aerospace vehicle inspired by variable geometry mechanism of honeybee abdomen
Biomimetic skeleton structure of morphing nose cone for aerospace vehicle inspired by variable geometry mechanism of honeybee abdomen
复制标题
受蜜蜂腹部可变几何机构启发的空天飞行器变形鼻锥仿生骨架结构
DOI：
10.1016/j.ast.2019.06.010
复制
发表时间：
2019-09-01
影响因子：
5.6
通讯作者：
Cai, Qiaoyan
中科院分区：
文献类型：
--
作者：
Zhang, Yuling;Zhao, Jieliang;Cai, Qiaoyan
具有航空航天功能的航天器实现了完全可重复使用，是未来世界各国争夺空天控制权的关键武器。然而，目前航天飞机的前锥体并不能对外部环境的变化做出最优响应。鼻锥的恒定结构也大大降低了运动范围和灵活性。受蜜蜂腹部变几何机构的启发，设计了一种变形鼻锥的仿生骨架结构，可以实现连续拉伸和弯曲。基于螺旋理论，计算了变形鼻锥的自由度。在此基础上，制作了变形鼻锥六段仿生骨架结构样机。在此基础上，分别对变形鼻锥进行了仿真分析和实验测试，评价了变形鼻锥的变形能力和动态性能。结果表明，变形鼻锥的变形能力满足设计要求。变形鼻锥传动机构的柔性使其产生高频分量，大大降低了其动态性能。该研究为航天飞行器变形鼻锥的设计提供了理论分析和实验支持。(C)2019爱思唯尔·马森SAS。版权所有。
Aerospace vehicle containing aeronautics and astronautics function realizes completely reusable, which is the key weapon for the future world countries to fight for air and space control power. However, the current nose cone of aerospace plane cannot respond optimally to the changes in the external environment. The constant structure of nose cone also greatly reduces the range of motion and flexibility. In this paper, a biomimetic skeleton structure of morphing nose cone inspired by variable geometry mechanism of honeybee abdomen is designed, which can achieve stretching and bending continuously. Based on the screw theory, the degree of freedom of morphing nose cone is calculated. Then a prototype of biomimetic skeleton structure with six segments for the morphing nose cone has been manufactured. Further, the simulation analysis and experimental test of the morphing nose cone are conducted respectively to evaluate the deformation ability and dynamic performance. The results show that deformation ability of the morphing nose cone meets the design requirements. The flexibility of drive mechanism in the morphing nose cone causes high-frequency components, which greatly reduces its dynamic performance. This research provides the way to develop a theoretical analysis and experimental support for the design of morphing nose cone for aerospace vehicle. (C) 2019 Elsevier Masson SAS. All rights reserved.