林用高空作业车调平机构的优化  

Optimization of leveling mechanism of forest aerial work vehicle

作　　者：谭棣夫 邓旻涯 李科军 TAN Difu;DENG Minya;LI Kejun

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004

出　　处：《现代机械》2024年第2期68-72,共5页Modern Machinery

摘　　要：为了提高林业高空作业车调平机构的调平稳定性,对调平机构进行了研究,对上调平机构的调平液压缸推力进行了分析,建立了上下调平机构六变量优化的数学模型,以调平过程中上调平油缸受力最小、调平摆动极值趋于0、调平摆动误差区间最小作为优化目标,以几何空间位置约束、三角形约束为约束条件,采用Box-Behnken Design(BBD)设计响应面实验进行参数优化。优化实验结果表明,优化后的调平机构误差区间最大值为0.422°,较优化前的误差区间降低了31.3%,上调平液压缸最大推力为308458 N,较优化前降低了1.8%。该研究可为高空作业平台液压调平机构的工作原理分析及优化设计提供参考依据。In order to improve the stability and accuracy of the leveling mechanism of the forest aerial work vehicle,this paper analyzes the hydraulic cylinder operation of the up-leveling mechanism,establishes a mathematical model for six-variable optimization of the up-leveling mechanism and the down-leveling mechanism,and optimizes the parameters of the leveling mechanism with the goals of minimizing the force load of the up-leveling oil cylinder,minimizing the extremum values of the adjustment error,and minimizing the range of the adjustment error.The Box-Behnken Design(BBD)is used to optimize the parameters.The experimental results show that the maximum adjustment error of the optimized leveling mechanism is 0.422°,which is reduced by 31.3%.The maximum force of the up-leveling hydraulic cylinder was 308458 N,which is reduced by 1.8%.The study can provide reference for analyzing the working principles and optimizing the design of the hydraulic leveling mechanism of the aerial work platform.

关 键 词：调平误差分析 Box-Behnken DESIGN 试验设计 液压调平机构 铰点优化 

分 类 号：TH211.6[机械工程—机械制造及自动化]