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Effects of soil mechanical properties on the height and tractive performance of rubber grouser at different moisture contents

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International Journal of Agricultural and Biological Engineering 2022年第6期15卷 31-37页

作者： Sher Ali Shaikh Yaoming Li Zheng Ma Farman Ali Chandio Mazhar Hussain Tunio Fiaz Ahmad Kashif Ali Solangi School of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina Sindh Agriculture University 70060 Tando JamPakistan Department of Agricultural Engineering Bahauddin Zakariya UniversityMultan 60800Pakistan

rubber tracked vehicles are commonly used on agricultural machinery that perform agricultural operations such as rice harvesting in soft paddy fields with low bearing *** was carried out to assess the influence of soil moisture content and mechanical properties on the tractive performance of a rubber grouser with three heights(45 mm,55 mm,60 mm).The direct shear test and penetration test were used in this study,which was based on a semi-empirical approach of determining tractive *** shear tests were used to measure soil shear strength parameters such as cohesion,adhesion,internal and exterior friction *** results of the penetration test were used to determine tractive parameters such as soil thrust,running resistance,and traction,for the penetration test,a device was designed and *** experimental results revealed that soil cohesion and adhesion increased linearly with increasing soil moisture content,however adhesion dropped after 30.7%.Similarly,the soil thrust initially increased till 21.5%then ***,running resistance had a decreasing trend over soil moisture content whereas maximum traction achieved for 45 mm grouser height at 21.5%moisture *** was concluded that a rubber grouser with 45 mm height had better traction rather than 55 mm and 60 mm,it can be suitably used for designing a track system for a crawler vehicle(e.g.,harvester)leading to its greater adoption among the farmers.

关键词： soil moisture content traction rubber grouser soil mechanical properties tracked vehicle

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