基于RecurDyn的丘陵作业平台坡地稳定性研究  

Research on Slope Stability of Hilly Work Platform Based on RecurDyn

作　　者：王佳瑞 廖敏[1] 陈瑞 夏海龙 李俊举 Wang Jiarui;Liao Min;Chen Rui;Xia Hailong;Li Junju(School of Mechanical Engineering,Xihua University,Chengdu 610039,China)

机构地区：[1]西华大学机械工程学院,成都610039

出　　处：《农机化研究》2025年第5期43-50,58,共9页Journal of Agricultural Mechanization Research

基　　金：成都市科技局项目(2022-YF05-01127-SN);四川省科技厅项目(2021YFN0020)。

摘　　要：针对农机在丘陵地区坡地作业时易造成倾翻的问题,设计一种质心可调式作业平台,对其坡地稳定性进行了研究。因作业平台在坡地作业时,会根据工作需要将工作装置进行升降,若工作装置质量较大,其坡地稳定性影响会较大,在坡地行驶和越障时容易倾翻。为此,结合作业平台不同的工作状态,建立了常规的纵坡行驶、横坡行驶和越障时的稳定性分析模型,并进行了纵向与横向常规行驶稳定性与越障行驶稳定性的研究,分析了质心调节装置对整机的纵坡横坡行驶和越障稳定性的调节能力,利用RecurDyn初步仿真分析与试验平台的综合试验分析对理论分析进行了验证。测试平台的试验结果表明:在作业平台纵坡和横坡行驶过程中,通过合理调节工作装置位置,作业平台在不同工作状态下的极限可通过坡面角度都提升了约6°,在常见的15°坡面上纵坡与横坡行驶时的极限越障高度分别提升了约40 mm和120 mm,明显提升了坡地行驶稳定性。试验验证了稳定性分析模型的可用性,为丘陵地区作业平台的设计提供理论参考。This paper studied the slope stability of a centroid-adjustable working platform to address the issue of poor stability and tipping of agricultural machinery during operations on hilly terrain.The working platform needed to lift and lower its working device according to the operational requirements.However,when the working device had a significant mass,it greatly affects the stability on slope,leading to tipping during longitudinal and lateral driving and obstacle crossing.This study established stability analysis models for conventional longitudinal and lateral driving and obstacle-crossing under different working conditions of the working platform.The study also analyzed the adjustment capability of the centroid-adjustment device on the stability of the whole machine during longitudinal and transverse driving and obstacle crossing.The theoretical analysis was validated through a combination of Recurdyn preliminary simulations and comprehensive experimental analysis using a test platform.The experimental results on the test platform indicated that by adjusting the position of the working device reasonably,the maximum slope angle of the working platform in different working conditions could be increased by approximately 6°.The maximum obstacle crossing height during longitudinal and lateral driving on a common 15°slope was increased by approximately 40 mm and 120 mm,respectively,significantly enhanced the stability of slope driving.This verified the usability of the stability analysis models and provided theoretical references for the design of working platforms in hilly regions.

关 键 词：坡地稳定性 作业平台 多体动力学仿真 RECURDYN 越障稳定性 

分 类 号：S224.9[农业科学—农业机械化工程]