1.上海工程技术大学机械与汽车工程学院，上海 201600； 2.机械工业航空大型复杂薄壁构件智能制造技术重点实验室，上海 201600；
Topology Optimization of Quadcopter Unmanned Aerial Vehicle based on Continuous Fiber Additive Manufacturing Process
Xiong Ting1, Qian Bo12, Hu Zhentao1 , Mao Jian12, Zhao Man12, Liu Gang123
1.School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science,Shanghai 201600,China; 2.Key Laboratory ofIntelligent Manufacturing Technology of Large Complex Thin-Wall Components of Machinery Industry Aviation,Shanghai 201600,China; 3.The Sichuan Research Institute of Shanghai Jiao Tong University, Chengdu 610213,China
摘要：针对四旋翼无人机实现轻量化和提升力学性能的需求，提出一种连续纤维增材制造工艺和拓扑优化构型设计相结合的方法。首先基于复合丝材制备工艺 ，以连续碳纤维为增强材料，短切碳纤维填充尼龙为基体材料，通过熔融沉积成型制得复合材料样件，研究成型方向 、纤维分布区域和成型路径方式对样件力学性能影响，得到连续碳纤维复合材料的最佳工艺参数为平放打印、纤维层均匀间隔分布和 0° 成型路径。其次 ，利用拓扑优化技术对承载能力最弱工况下的四旋翼无人机重新设计，优化后模型的质量比优化前减轻了 48%。 再结合最佳工艺参数制备不同连续纤维体积分数的四旋翼无人机样件进行压缩性能测试，结果表明连续纤维体积分数为 35% 时 ，可在较低成本下提高样件的力学性能。
Abstract：A method combining continuous fiber additive manufacturing process and topology optimization configuration design was proposed to meet the requirements of lightweight and improving mechanical performance for quadcopter unmanned aerial vehicles. Firstly, based on the preparation process of composite wire materials, continuous carbon fibers were used as reinforcing materials and nylon materials filled with chopped carbon fibers were used as the matrix material, the composite samples were prepared by fused deposition modeling. The effects of molding direction, fiber distribution area, and molding path on the mechanical properties of the samples were studied. It is found that the optimal process parameters for continuous carbon fiber composite materials are flat printing, evenly spaced distribution of fiber layer, and 0° molding path. Secondly, topology optimization technology was used to redesign the quadcopter unmanned aerial vehicle with the weakest load-bearing capacity, and the mass of the optimized model decreased by 48% compared to before. Combined with the optimal process parameters, quadcopter unmanned aerial vehicle samples with different continuous fiber volume fractions were prepared for compression performance testing. The results show that when the continuous fiber volume fraction is 35%, the mechanical properties of the samples can be improved at a lower cost.
Keywords：continuous fiber; additive manufacturing; technical principle; topology optimization; quadcopter unmannedaerial vehicle
Xiong Ting，Qian Bo，Hu Zhentao，et al. Topology optimization of quadcopter unmanned aerial vehicle based on continuous fiber additivemanufacturing process[J]. Engineering Plastics Application，2023，51(10)：76-84.