商用车底盘结构强度与疲劳耐久性设计关键技术研究
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中图分类号：U463 DOI：10.20042/j.cnki.1009-4903.2026.01.008
Key Technology Research on Structural Strength and Fatigue Durability Design of Commercial Vehicle Chassis
Abstract：Withteontiuousriseindemandsforeadutyperformanceighreliabitandextendedseicelifecorcial vehiclechasis structures nowface increasinglycomplex operational conditions and stricterrequirements forstructural strength andfatiguedurabitAsthecoreload-bearingunitsupportingtheveicle'spowertrain，suspesionsystem，andbodystructur，the chassis'structuralsfetyndurabitirectlimpactoperatialelabiltericeifndotiecyisstudtate thatestablishingmuliconditionloadspectra，implementingfatiguedamage-basedstructuraloptimizationmethods，andenancing experimentalvalidationwithengineeringfeedbackmechanismscaneffctivelyimprovethesafetymarginandfulifereliabilityof commercialvehiclechassisstructures.Theseadvancementsprovidetechnicalsupportforthelightweightandhighdurabitydesignof next-generation commercial vehicle chassis.
Key words： Commercial vehicle；Chassis structure；Structural strength；Fatigue durability；Life prediction
0 引言
随着物流运输强度的不断提升以及车辆服役环境的多样化发展，商用车正逐步向重载化、高效率与高可靠性方向演进。（剩余3459字）