基于多保真度代理模型的混凝土泵车臂架销轴轻量化设计

doi:10.3969/j.issn.1004-132X.2025.04.019

中国机械工程 ›› 2025, Vol. 36 ›› Issue (04): 821-829.DOI: 10.3969/j.issn.1004-132X.2025.04.019

基于多保真度代理模型的混凝土泵车臂架销轴轻量化设计

李鹏^1,2,3,4;李梦聪^1,4;肖立波^2,3;王一棠^1,4*;宋学官^1,4;阳领⁵

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
5.湖南信息职业技术学院，长沙，410200

出版日期:2025-04-25 发布日期:2025-05-22
作者简介:李鹏，男，1989年生，博士研究生。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）；中联重科股份有限公司基金（HX20230163）

Lightweight Design of Concrete Pump Truck Boom Pins Based on Multi-fidelity Surrogate Model

LI Peng^1,2,3,4;LI Mengcong^1,4;XIAO Libo^{2, 3};WANG Yitang^1,4*;SONG Xueguan^1,4;YANG Ling⁵

1.School of Mechanical Engineering,Dalian University of Technology,Dalian，Liaoning，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，Liaoning，116024
5.Hunan College of Information,Changsha，410200

Online:2025-04-25 Published:2025-05-22

摘要/Abstract

摘要： 销轴作为混凝土泵车臂架系统中关键的连接和支撑部件，如何在保证安全的前提下实现结构轻量化是设计过程中值得关注的问题。基于控制参数构建了空心哑铃销轴的参数化有限元模型；通过高、低保真度模型的相互扰动和高、低保真数据的合理算时分配，建立了精度更高的基于特征映射的多保真度代理模型，以该代理模型为基础，采用遗传算法进行优化，获得了空心哑铃销轴的最佳设计方案，实现了销轴减重36%。理论计算、仿真和试验三重校核表明，基于代理模型最优参数所构建的空心哑铃销轴在实现轻量化和节省材料消耗的同时，其物理力学性能依然能够得到保证，为后续进一步应用提供了数据支撑和参考。

关键词: 混凝土泵车, 空心销轴, 轻量化设计, 多保真度代理模型

Abstract: As a key connecting and supporting component in a concrete pump truck boom system, how to reduce the mass of the pin shafts was a noteworthy issue in boom design. A parameterized finite element model of the hollow dumbbell pin shafts was constructed based on control parameters. Then, a more accurate feature mapping based MFS(FM-MFS) model was established through the mutual disturbance of high and low fidelity models and the reasonable allocation of high and low fidelity data. Genetic algorithm was used for optimization to obtain the optimal design scheme for the hollow dumbbell pins based on this surrogate model, achieving a weight reduction of 36%. Through theoretical, simulation, and experimental verification, it is shown that the hollow dumbbell pin shafts constructed based on the optimal parameters of the surrogate model may achieve lightweight and material consumption savings while still ensuring the physical and mechanical properties, which provides data support and reference for further applications in the future.

Key words: concrete pump truck, hollow pin, lightweight design, multi-fidelity surrogate（MFS） model

中图分类号:

TH122

李鹏1, 2, 3, 4, 李梦聪1, 4, 肖立波2, 3, 王一棠1, 4, 宋学官1, 4, 阳领5. 基于多保真度代理模型的混凝土泵车臂架销轴轻量化设计[J]. 中国机械工程, 2025, 36(04): 821-829.

LI Peng1, 2, 3, 4, LI Mengcong1, 4, XIAO Libo2, 3, WANG Yitang1, 4, SONG Xueguan1, 4, YANG Ling5. Lightweight Design of Concrete Pump Truck Boom Pins Based on Multi-fidelity Surrogate Model[J]. China Mechanical Engineering, 2025, 36(04): 821-829.

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链接本文: https://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2025.04.019

https://www.cmemo.org.cn/CN/Y2025/V36/I04/821

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基于多保真度代理模型的混凝土泵车臂架销轴轻量化设计

Lightweight Design of Concrete Pump Truck Boom Pins Based on Multi-fidelity Surrogate Model

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