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

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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

中图分类号：TH122

DOI：10.3969/j.issn.1004-132X.2025.04.019 开放科学（资源服务）标识码（OSID）：

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

LI Peng1，2，3，4LI Mengcong1，4XIAO Libo2，3WANG Yitang1，4*SONG Xueguan1，4YANG 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

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 holow 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

0 引言

混凝土泵车作为基础设施建设的重要工程机械，用于将混凝土输送至施工现场，在施工时能够提高工程施工效率，降低人力和时间成本。（剩余12333字）