混凝土泵车臂架机构铰点位置优化研究  

On optimization of hinge point position of boom mechanism of concrete pump truck

作　　者：赵远 张宇乐 陈晓伟 Zhao Yuan;Zhang Yule;Chen Xiaowei

机构地区：[1]太原科技大学机械工程学院,太原030024 [2]泰安市特种设备检验研究院,泰安271001

出　　处：《起重运输机械》2024年第7期38-43,共6页Hoisting and Conveying Machinery

基　　金：山西省基础研究计划项目(202203021221156);太原科技大学研究生教育创新项目(SY2023032)。

摘　　要：文中以某混凝土泵车为研究对象,针对臂架工作过程中液压缸受力过大且缺乏变幅平顺性的问题开展基于ADAMS的动力学分析与仿真研究,探索复杂运动特征下臂架结构的承载特性。通过建立臂架结构参数化模型并进行分析研究,基于真实载荷驱动进行臂架铰点位置优化,使液压缸最大受力大幅度降低。鉴于第1阶段优化过程针对目标单一,对臂架结构的优化设计缺乏完善性,故分析优化过程并构建多目标非线性约束优化模型,提出一种快速可行的联合仿真优化方案。分析结果表明,该方案进一步实现了液压缸与连杆的危险工况受力减小,有效降低了臂架工作过程中的受力波动,变幅机构性能得到明显提升,为混凝土泵车臂架机构铰点位置优化设计提供了理论基础。Taking a concrete pump truck as the research object,the dynamic analysis and simulation research based on ADAMS were carried out to solve the problem that the hydraulic cylinder is stressed too much and lacks luffing ride comfort during the boom work to explore the bearing characteristics of the boom structure under complex motion characteristics.By establishing and analyzing the parametric model of the boom structure,the position of the hinge point of the boom was optimized based on the real load drive,which greatly reduces the maximum force of the hydraulic cylinder.Considering that the objective of the first stage optimization process is single and the optimization design of the boom structure is not perfect,the optimization process was analyzed and a multi-objective nonlinear constraint optimization model was constructed,and a fast and feasible joint simulation optimization scheme was proposed.The analysis results show that the scheme further reduces the stress of the hydraulic cylinder and connecting rod in dangerous working conditions,effectively reduces the stress fluctuation during the working process of the boom,and obviously improves the performance of the luffing mechanism,which provides a theoretical basis for the optimal design of the hinge point position of the boom mechanism of the concrete pump truck.

关 键 词：泵车臂架 动力学仿真 参数化建模 铰点 多目标优化 

分 类 号：TU646[建筑科学—建筑技术科学]