铝一塑-钢混合型仪表板横梁轻量化设计与应用研究

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中图分类号： U463.83⋅7 ;U465 文献标志码：B DOI：10.19710/J.cnki.1003-8817.20250066

Lightweight Design and Application Research of Aluminum-PlasticSteelHybridInstrumentPanel Crossbeam

WangPeng，Yu Xinyang，Wang Jia， Shen Hongxi （FAWCar Co.，Ltd.， Changchun 130012）

Abstract：To enhance the driving range ofnew energy vehicles，alightweight designstudyof the dashboard crosbeam is conducted.Takingacertain pure electric vehicle model astheresearch object，2aluminum-plastic-steel hybrid crossbeam designsare proposed.Acost comparison isconducted，and Computer-Aided Engineering （CAE） simulationsareperformed toevaluatetheirstifness，strength，andmodalperformance.Theresultsdemonstratesthat bothschemessatisfythe performancerequirements （the displacementamplitude atthecenter point of the steering wheel under vertical static stiffness condition ⩽2.4 mm，the displacement amplitude at the center point of the steering wheel under horizontal static stiffness condition ⩽1.5mm ，thedisplacement amplitude of the dashboard crossbeam understatic load condition ⩽1.5 mm，the modal frequency of the steering column ⩾45 Hz，and the modal frequency of the CCB⩾35Hz ）.The crossbeam of Scheme 2 weighs 6.3kg. ，achievinga 30% weight reduction compared to the steel scheme （9.0kg） ）.Scheme 2 successfully passes component performance tests and 8，500km vehicle durability testson roughroads，fully meeting the design requirements.

Keywords：InstrumentPanel Crossbeam，Lightweight，Aluminum-Plastic-Steel Hybri

1前言

随着新能源汽车行业的快速发展，轻量化技术已成为提升整车续驶里程的核心技术路径。（剩余6046字）