Tilting stability analysis and experiment of the 3-DOF lifting platform for hilly orchards

作     者：Zhenhua Duan Wei Qiu Weimin Ding Yande Liu Yuping Ouyang Liang Huang 

作者机构：College of EngineeringNanjing Agricultural UniversityNanjing 210031China Co-Innovation Center of the Intelligent Management and Equipment for Orchard on the Hilly Land in South ChinaNanchang330013China 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2018年第11卷第6期

页      面：73-80页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：The research was financially supported by Co-Innovation Center of the Intelligent Management and Equipment for Orchard on the Hilly Land in south China(JX2014XCHJ02) 

主　　题：orchard-lifting platform hills areas tiling stability influencing factors analysis and experiment 

摘      要：An orchard-lifting platform is a type of mechanical equipment to assist growers in fruit picking,fruit tree pruning,flower thinning,and other *** its operational processes,the tilting stability directly affects the operational safety and adaptability under complex terrain conditions,while critical tilting angle is an important criterion to evaluate the tilting *** on the structure and the operating characteristics of the three degree of freedom(3-DOF)lifting platform for hilly orchards,the tilting stability was analyzed in different parked states,and the theoretical expressions of critical tilting angle were obtained;in the theoretical expressions,the influencing factors on tilting stability were determined as the parked positionβ1,the manned worktable rotary positionβ2,the lifting height h,and the load *** on the multi-body dynamics principle,the tilting stability simulation was carried *** relative error of tilting angles was approximately 4.6%between simulation and tilting verification experiment,which indicated that the results of tilting stability simulation were ***,the multi-body dynamics simulation was used for further clarifying the influencing factors on tilting stability.A virtual orthogonal test was designed,and the results showed that critical tilting angle ranged from 20°to 44°when the factors were at different values,which indicated that the 3-DOF lifting platform for hilly orchards had a high tilting stability performance and could adapt to the operating conditions of hills with slope angles from 5°to 20°.The results of the range analysis and ANOVA showed that the influence intensity of factors on tilting stability wasβ1hmβ2;at the same time,β1,h,and m exerted significant effect on tilting *** tilting stability first decreased and then either increased or decreased with the increasing lifting height;it gradually decreased with the increasing *** also showed that the position of the manned