换一批Tangent Resistance of Soil on Moldboard and the Mechanism of Resistance Reduction of Bionic Moldboard
摘要The tangent resistance on the interface of the soil-moldboard is an important component of the resistance to moving soil . We developed simplified mechanical models to analyze this resistance. We found that it is composed of two components, the frictional and adhesive resistances. These two components originate from the soil pore, which induced a capillary suction effect, and the soil-moldboard contact area produced tangent adhesive resistance. These two components varied differently with soil moisture. Thus we predicted that resistance reduction against soil exerted on the non-smooth bionic moldboard is mainly due to the elimination of capillary suction and the reduction of physical-chemical adsorption of soil.
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关键词
agriculture engineeringbionic moldboardinterfacial tangent resistancesoil adhesioncapillary suction
分类号
Q81（生物工程学《生物技术》）
发布时间
2008-01-07（万方平台首次上网日期，不代表论文的发表时间）
基金项目
the Key Project of Ministry of Education of P. R. China（(02089)）
国家重点基础研究发展计划(973计划)（(2002CCA01200)）
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