摘要
基于3D打印的制造优势,针对无人机领域中热门的轻量化需求,以四旋翼无人机为臂架作为优化对象,研究了晶格轻量化臂架设计方案并通过3D打印技术将其实现。晶格轻量化通过在内部填充晶格,不影响无人机原有结构造型,来保证原有结构的稳定性及其他空气动力学相关指标。内部晶格填充参考仿生学设计,晶格造型为仿蜂巢的六边形晶格,结构稳定,综合性能良好。通过最小优化算法,在限定变形区间内找到使体积尽可能小的最优解,以此来达到轻量化的最佳效果。
In this article,based on the manufacturing advantages of 3 D printing,for the ever-growing lightweight demand in the field of UAV,the design scheme of lattice lightweight boom is worked out and realized by means of the 3 D printing technology,with the four-rotor UAV as the optimization object. When the task of lattice lightweight is completed,lattice is filled in the interior. As a result,the original structure of UAV has no change,which ensures a higher standard of stability,aerodynamics and other indicators. The internal lattice is filled with reference to the bionic design,and it looks like a hexagonal lattice-imitating honeycomb,with stable structure and good comprehensive performance. With the help of the minimum optimization algorithm,the optimal solution with the smallest volume is worked out within the limited deformation range,so as to achieve the best effect of lightweight.
作者
宋思勤
吴钢
张文靖
SONG Si-qin;WU Gang;ZHANG Wen-jing(Logistics Engineering College,Shanghai Maritime University,Shanghai 201306)
出处
《机械设计》
CSCD
北大核心
2021年第6期25-29,共5页
Journal of Machine Design
关键词
无人机
轻量化
晶格结构
增材制造
UAV
lightweight
lattice structure
additive manufacturing
