泵车臂架多工况拓扑融合重构设计及应用研究

doi:10.3901/JME.2025.09.402

机械工程学报 ›› 2025, Vol. 61 ›› Issue (9): 402-410.doi: 10.3901/JME.2025.09.402

• 数字化设计与制造 • 上一篇

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泵车臂架多工况拓扑融合重构设计及应用研究

李鹏^1,2,3,4, 宋学官^1,4, 肖立波^2,3, 高荣芝^2,3, 王佳茜^2,3, 王一棠^1,4, 杨亮亮^1,4

1. 大连理工大学机械工程学院大连 116024;
2. 起重机械关键技术全国重点实验室长沙 410013;
3. 中联重科股份有限公司长沙 410013;
4. 高性能精密制造全国重点实验室大连 116024

收稿日期:2024-05-07 修回日期:2024-11-19 发布日期:2025-06-12
通讯作者: 宋学官,男,1982年出生,博士,教授,博士研究生导师。主要研究方向为多学科耦合建模与优化设计、工业大数据挖掘及数据驱动的预测技术、装备智能化与数字孪生。E-mail:sxg@dlut.edu.cn E-mail:sxg@dlut.edu.cn
作者简介:李鹏,男,1989年出生,博士研究生。主要研究方向为结构振动、结构疲劳、结构轻量化。E-mail:55131668@qq.com
基金资助:
湖南省自然科学基金(2023JJ40688)和中联重科股份有限公司基金(HX20230163)资助项目。

Multi Working Condition Topology Optimization and Model Fusion Reconstruction of Pump Truck Boom Structure

LI Peng^1,2,3,4, SONG Xueguan^1,4, XIAO Libo^2,3, GAO Rongzhi^2,3, WANG Jiaqian^2,3, WANG Yitang^1,4, YANG Liangliang^1,4

1. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024;
2. National Key Laboratory of Hoisting Machinery Key Technology, Changsha 410013;
3. Zoomlion Heavy Industry Science & Technology Co., Ltd, Changsha 410013;
4. State Key Laboratory of High-performance Precision Manufacturing, Dalian 116024

Received:2024-05-07 Revised:2024-11-19 Published:2025-06-12

摘要/Abstract

摘要： 混凝土泵车的重量法规日益严苛，急需对泵车臂架系统进行轻量化设计。以某款泵车一臂为例，首先借助多体动力学分析技术，建立臂架铰点组模型进行运动学仿真，识别出油缸力最大、铰点力最大、臂架载荷最大等所有极限工作工况；然后通过多工况拓扑优化和三维模型融合重构技术，对臂架进行了拓扑镂空设计，实现一臂结构减重300 kg；最后对镂空臂架结构进行了行业首次静强度和疲劳可靠性考核验证。试验结果表明：镂空臂架结构的静应力不超580 MPa，满足材料静强度使用要求；结构疲劳寿命等效9 600工作小时，大于行业疲劳寿命使用要求。镂空臂架结构已在多款泵车产品上实现了批量应用，使用多年未出现任何失效破坏模式。研究成果有力支撑我国泵车臂架轻量化设计水平持续保持国际领先。

关键词: 混凝土泵车, 多工况拓扑优化, 模型重构, 结构轻量化, 臂架试验

Abstract: The weight regulations for concrete pump trucks are becoming increasingly stringent, and there is an urgent need for lightweight design of the pump truck boom system. Taking the 1th boom section of a certain pump truck as an example, firstly, the multi-body dynamics analysis model of the boom is established, and all extreme working conditions are identified. Then, through multi condition topology optimization and model fusion reconstruction technology, a hollow-out design is carried out with a weight reduction of 300 kg. Finally, the static strength and fatigue reliability assessments are conducted, and the test results show that the static stress of the hollow-out boom structure does not exceed 580 MPa, and the equivalent fatigue life of the structure is 9 600 working hours, which meets the industry's usage requirements. The hollow-out boom structure has been widely used in multiple pump truck products and has not experienced any failure or damage modes. The research results strongly support the sustained international leading level of lightweight design for boom structure in the pump truck industry.

Key words: concrete pump truck, multi working condition topology optimization, model fusion reconstruction, lightweight structure, boom test

中图分类号:

TH6
TH123

李鹏, 宋学官, 肖立波, 高荣芝, 王佳茜, 王一棠, 杨亮亮. 泵车臂架多工况拓扑融合重构设计及应用研究[J]. 机械工程学报, 2025, 61(9): 402-410.

LI Peng, SONG Xueguan, XIAO Libo, GAO Rongzhi, WANG Jiaqian, WANG Yitang, YANG Liangliang. Multi Working Condition Topology Optimization and Model Fusion Reconstruction of Pump Truck Boom Structure[J]. Journal of Mechanical Engineering, 2025, 61(9): 402-410.

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泵车臂架多工况拓扑融合重构设计及应用研究

Multi Working Condition Topology Optimization and Model Fusion Reconstruction of Pump Truck Boom Structure

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