论文部分内容阅读
柔性机构应用于变弯度自适应机翼可以实现机翼外形随飞行状态的改变而发生连续平滑变形,具有很好的应用前景。从柔性构件的材料属性出发,基于载荷路径的遗传算法,从单一材料构件和多材料组合构件两个方面,对某机翼前缘进行拓扑优化,并对多材料组合变形结果进行ANSYS仿真,经过对比分析表明,柔性机构优化中采用多材料组合局部改变材料属性比只用单材料更能达到较好的变形要求,同时可以通过寻求更广泛的材料组合使拓扑效果达到最优化。
The application of flexible mechanism to variable camber adaptive wing can realize continuous and smooth deformation of wing profile with the change of flight state and has good application prospect. Based on the material properties of flexible members and the genetic algorithm based on load paths, the topology optimization of the leading edge of a wing is carried out from the aspects of single material component and multi-material component, and the ANSYS simulation results of multi-material combination deformation are given. The comparative analysis shows that using multi-material combination to locally modify the material properties in flexible mechanism optimization can achieve better deformation requirements than using only one material, and at the same time, the topological effect can be optimized by seeking a wider range of material combinations.