吉林大学学报(工学版) ›› 2024, Vol. 54 ›› Issue (3): 842-851.doi: 10.13229/j.cnki.jdxbgxb.20220605
• 农业工程·仿生工程 • 上一篇
杨欣1(),王阳1,2,宋家锋3,4,朱勇2,黄彬兵2,许述财3,5(
)
Xin YANG1(),Yang WANG1,2,Jia-feng SONG3,4,Yong ZHU2,Bin-bing HUANG2,Shu-cai XU3,5(
)
摘要:
探索了基于虾螯轮廓外形设计的仿生夹层板(BSP)的耐撞性。按照拉伸试验获得的材料本构参数设置了Hyperworks有限元模型,制造了BSP样件,并试验验证了有限元模型有效性。比较了BSP-L0、BSP-L180、BSP-T0、BSP-T180四种配置方案的耐撞性指标,选择BSP-T0方案进一步研究。分析了圆弧高度比γ和梯形晶元窄底宽度B对BSP-T0耐撞性的影响规律,得到γ比B对BSP-T0耐撞性的影响更大。利用遗传学算法进行参数优化,Pareto前沿的一个最优解为比吸能SEA=3.080 kJ/kg、峰值载荷PF=30.700 kN、平均压溃效率CFE=86.884%,相应参数γ=0.355,B=4.23 mm,预测与仿真结果误差均在2%以内,预测效果理想,本文研究成果可为夹层结构设计提供新思路。
中图分类号:
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