摘要
土壤对机械和机具的粘附是一个亟待解决的重要问题。本研究根据典型土壤动物蜣螂头部非光滑表面形貌设计了非光滑推土板。这种非光滑推土板的推土阻力随着推土板表面贴敷的小凸包的分布、凸包材料、切削速度、切削角、切削深度及土壤含水量的不同而变化。含水量由30.38％增加到35.50％,推土阻力随之减小。精选推土板之平均最大降阻可达30％。研究结果还表明超高分子量聚乙烯(UHMW—PF)能够明显地减粘降阻。
In this study, a number of unsmoothed bulldozing plates were designed based on the unsmoothed surface morphology of the head of dung beetle, a typical soil animal. Draft of these plates varied with the design/distribution of the small convexes glued on the surfaces of the bulldozing plates, material of the small convexes, speed of cut, angle of cut, depth of cut and soil moisture contents. The draft decreased with the increase of soil moisture contents from 30. 38% (db) to 35. 50% (db). An average maximum reduction of 30% in draft was achieved while screening the plates. The results of the present study also indicated that Ultra High Molecular Weight-Polyethelyne (UHMW-PE) could reduce soil adhesion and draft considerably.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
1993年第1期7-13,共7页
Transactions of the Chinese Society of Agricultural Engineering
基金
Project supported by National Natural Science Foundation of China
关键词
土壤粘附
推土板
阻力
Bianic Bulldozing plate Soil adhesian Draft
