礦用自卸車后門抗沖擊性能分析

打開文本圖片集

中圖分類號：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

在礦區(qū)開采及礦物運(yùn)輸過程中，礦用自卸車以其高效的運(yùn)輸能力、強(qiáng)大的裝載能力等優(yōu)點(diǎn)，在大型露天煤礦的采礦作業(yè)場景中被廣泛應(yīng)用[1]。（剩余4435字）