吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (2): 508-515.doi: 10.13229/j.cnki.jdxbgxb201502026
张锐1,杨明明1,刘海宝1,曾桂银1,潘润铎2,李建桥1
ZHANG Rui1, YANG Ming-ming1, LIU Hai-bao1, ZENG Gui-yin1, PAN Run-duo2, LI Jian-qiao1
摘要: 采用逆向工程技术,完成了鸵鸟足底曲面三维重构和分区,基于离散元法和有限元法,进行了鸵鸟足底曲面/沙土相互作用数值模拟。鸵鸟足底曲面下沙土颗粒流动程度沿足宽方向大于沿足长方向,表明鸵鸟足底曲面形貌更好地减缓了鸵鸟足在沙地上的前行滑移程度。在鸵鸟足多曲面结合形貌中,第Ⅲ趾底中间凹槽面固沙限流效果最好,此区域的沙土颗粒群受力呈现网格状稳态紧固分布。鸵鸟足第Ⅲ趾底中间凹槽面数学模型的建立,为鸵鸟足底曲面仿生设计提供了重要理论依据。
中图分类号:
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