摘要
仿生几何非光滑表面的减粘降阻功效已被大量的试验研究所证实。由于几何非光滑结构单元的大小和分布对减粘降阻效果具有显著的影响，故对其与土壤相互作用的定量分析是必要的。本文对凸包型几何非光滑表面与土壤相互作用进行了三维有限元分析，并将其同光滑表面与土壤相互作用的有限元分析结果进行了比较，分析了减粘降阻的原因。
It is testified through a great deal of experiments that geometric unsmoothed surfaces have a good function of reducing soil adhesion and resistance.However,the size and distribution of geometric unsmooshed structural units affects this function significantly.Therefore,it is necessary to analyze the interaction betwecn soil and unsmoothed surface quantitatively.This paper makes 3-DFE analysis of the interaction of soil and concave sunface. The comparison between the results and conventional surface is also made,through which the cause of reducing adhesion and resistance is analyzed.
基金
国家自然科学基金
关键词
有限元
减粘降阻
推土机
推土板
非光滑表面
gometric unsmoothed surface,FEM,reducing adhesion and resistance
