矿用自卸车后门抗冲击性能分析

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中图分类号：U469.4 收稿日期：2025-06-12 DOI： 10.19999/j.cnki.1004-0226.2025.08.017

Analysis On IMPACT RESISTANCE of Rear Door of Mining Dump Truck

Li huilWu Lina2，3Qi jianghual 1.Hunan Valin Lianyuan Iron and Steel Co.，Ltd.，Loudi 417oo9，China 2.CATARC Automotive Test Center（Wuhan）Co.，Ltd.，Wuhan 430056，China 3.China Automotive Technology and Research Center Co.，Ltd.，Tianjin 30o30o，China

Abstract：Aimingat he problem ofcracking of therear doorofmining dumptruck，a simulationanalysis method ofrear door impactresstanceisproposed.Firstly，emathematicalmodelsofokfallimpactandeardorslappingareestablishd，ndtepact characteristicsofthereardoorunderthetwoworkingconditionswereanalyzed.Secondlythefiniteelementmodeloftheimpactresistanceofthebackdooundertypicalworkingconditions isestablished，andthestressdistributionandplasticdeformationof erar doorunderthetwotypicalworkingconditionsareanalyzed，andtheanalysismethodisverifiedfromtheperspectiveofenergyonser vation.Theanalysisresultsshowthat themaximumstressofthematerialundertheconditionsofrockfallimpactandrardoorclapexcedsthetensilestrengthofthematerialutthplasticstraindosnotexcdeelongationoftematerialthestructureisinthe stage of plastic deformation and necking，and there is a risk of fracture.

Key words：Mining dump trucks;Rear door; Impact resistance;Rockfallimpact;Backdoor banging

1前言

在矿区开采及矿物运输过程中，矿用自卸车以其高效的运输能力、强大的装载能力等优点，在大型露天煤矿的采矿作业场景中被广泛应用[1]。（剩余4435字）