基于数学模型的汽车零部件疲劳耐久性分析

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中图分类号：U467.497 文献标识码：A 文章编号：1003-8639（2025）10-0124-03

【Abstract】Fatigue failure of automotive components is a key factor affecting vehicle safety and service life. In the contextof therapid developmentoftheautomobileindustry，thetraditional empirical designmethodisdiicultto meetthe durability requirements under long cycleandcomplex working conditions.Withthe progress of computational mechanicsand material science，quantitative analysis methods based onmathematical models provide eficient and lowcost solutions forfatigue life prediction.Therefore，thispaper systematicallydiscusses the mathematical characterization offatigue damage behaviorof automotive parts，in the hope of promotingthe paradigm shiftof durability design from "experimentalvalidation" to "model-driven"，and providing theoretical support forautomotive lightweightingand reliabilityenhancement.

【Key words】mathematical model;automotive parts；fatigue analysis;durability

0 引言

汽车零部件长期承受交变载荷作用，其疲劳累积损伤导致断裂、变形等问题，直接威胁行车安全并引发高昂的售后服务成本。（剩余4122字）