The effect of integrating a bio-inspired convex structure with a low-surface energy polymer on soil adhesion and friction

IF 2.4 3区 工程技术 Q3 ENGINEERING, ENVIRONMENTAL
Abouelnadar El Salem , Guozhong Zhang , Hongchang Wang , Haytham M. Salem , Mohamed A.I. Abdalla , Ahmed A. Ghazy
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引用次数: 0

Abstract

The capacity of soil-burrowing animals to move freely in sticky soil is a motivational trait for developing soil-engaging tools with high operational efficiency. Meanwhile, outstanding hydrophobicity, chemical stability, and corrosion resistance make ultra-high molecular weight polyethylene (UHMW-PE) a potential option for reducing soil adhesion. This study looked into the viability of combining a domed surface inspired by the micro-convex structure of the dung beetle skin with the UHMW-PE as a surface coating to reduce sliding resistance. The sliding resistances of three plates (a flat plate of carbon steel, a flat plate of UHMW-PE, and a domed plate of UHMW-PE) were assessed under varied operating and soil conditions. In each treatment, the tested plate was dragged for 0.7 m of the soil bin length, and the sliding resistance was recorded using the distributed stress and strain test and analysis system (DH3820 N). The results revealed that in all treatments, the sliding resistance of the UHMW-PE domed plate was significantly lower than that of the flat steel plate. Furthermore, the UHMW-PE domed plate outperformed the other tested plates in reducing sliding resistance in more moist and sticky soils, paving the way for the development of highly practical and effective soil-engaging tools.

集成仿生凸结构与低表面能聚合物对土壤粘附和摩擦的影响
土穴动物在粘性土壤中自由移动的能力是开发高效吸土工具的动力特性。同时,优异的疏水性、化学稳定性和耐腐蚀性使超高分子量聚乙烯(UHMW-PE)成为减少土壤附着力的潜在选择。这项研究着眼于将受蜣螂皮肤微凸结构启发的圆顶表面与超高分子量聚乙烯(UHMW-PE)作为表面涂层相结合的可行性,以减少滑动阻力。研究了碳钢平板、超高分子量聚乙烯平板和超高分子量聚乙烯圆顶板在不同工况和土壤条件下的滑动阻力。在每个处理中,将被试板拖拽0.7 m的土仓长度,并使用DH3820 N分布式应力应变测试分析系统记录其滑动阻力。结果表明,在所有处理中,超高分子量聚乙烯穹顶板的滑动阻力均显著低于扁钢板。此外,超高分子量聚乙烯(UHMW-PE)圆顶板在减少潮湿和粘性土壤中的滑动阻力方面优于其他测试板,为开发高度实用和有效的土壤接触工具铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Terramechanics
Journal of Terramechanics 工程技术-工程:环境
CiteScore
5.90
自引率
8.30%
发文量
33
审稿时长
15.3 weeks
期刊介绍: The Journal of Terramechanics is primarily devoted to scientific articles concerned with research, design, and equipment utilization in the field of terramechanics. The Journal of Terramechanics is the leading international journal serving the multidisciplinary global off-road vehicle and soil working machinery industries, and related user community, governmental agencies and universities. The Journal of Terramechanics provides a forum for those involved in research, development, design, innovation, testing, application and utilization of off-road vehicles and soil working machinery, and their sub-systems and components. The Journal presents a cross-section of technical papers, reviews, comments and discussions, and serves as a medium for recording recent progress in the field.
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