林用高空作业车调平机构的优化
Optimization of leveling mechanism of forest aerial work vehicle
谭棣夫 1邓旻涯 1李科军1
作者信息
- 1. 中南林业科技大学 材料科学与工程学院,湖南 长沙 410004
- 折叠
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 De-sign(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.
Abstract
In order to improve the stability and accuracy of the leveling mechanism of the forest aerial work vehicle,this pa-per analyzes the hydraulic cylinder operation of the up-leveling mechanism,establishes a mathematical model for six-varia-ble optimization of the up-leveling mechanism and the down-leveling mechanism,and optimizes the parameters of the level-ing 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 by31.3%.The maximum force of the up-leveling hydraulic cylinder was308458 N,which is re-duced by1.8%.The study can provide reference for analyzing the working principles and optimizing the design of the hy-draulic 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Key words
leveling error analysis/Box-Behnken Design/hydraulic leveling mechanism/joint optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据