高速无人飞行器伞吊点隔框拓扑优化设计

Topology Optimization Design of Hanging Point Bulkhead for Parachute of High-speed UAV

对于伞降回收高速无人飞行器而言,伞吊点隔框结构轻量化设计尤为重要。针对某型高速伞降回收无人飞行器采用ANSYS Workbench模块,并以拓扑优化变密度法为理论基础,对前伞吊点隔框进行轻量化设计;基于优化结果及实际应用需求,进行二次优化设计;通过静力实验对优化后结构承载能力进行验证。结果表明:在同载荷边界条件下,可实现某型号无人机前伞吊点隔框减质量42%,且满足实际使用要求,为高速伞降回收无人机关键承力结构的优化设计提供了思路。

In terms of parachuting recovery of high-speed UAV,the lightweight design of the parachute lifting point frame structure is particularly important.With topology optimization variable density method as the theoretical basis,adopts ANSYS Workbench module to carry out front parachute drop point frame lightweight design.Based on the optimization results and practical application requirements,the secondary optimization design is conducted.And static experiments are undertaken to verify the load-bearing capacity of the optimized structure.The results show that under the same load boundary conditions,the weight of the front parachute point frame of a certain type of UAV can be reduced by 42%and meet the practical requirements,which provides ideas for the optimization design of the key load-bearing structure of high-speed parachute recovery UAV.