空气悬架储气罐数值模拟及研究

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中图分类号：TH49 文献标志码：B DOI：10.19710/J.cnki.1003-8817.20250095

Abstract：This study systematicallyinvestigates the pressure-bearing capacity and failure mechanism of air suspensionreservoirs throughnumerical simulation，bursttesting，and theoretical calculation.Basedonnonlinear materialconstitutiverelations，numerical simulationsreveal that when thecylinder wallthickness increases to2.3mm， the maximum equivalent plastic strain reaches 6% ，demonstrating sufficient strength to withstand the design pressure of 6 MPa.Burst tests show theactual pressure-bearing of the2.3 mm thick reservoir reaches 7.29 MPa，with failure consistentlyoccurringatthenozzle-jointarea，corelating perfectlywith high-stresszones identifiedinsimulations. Fracturesurfaces exhibitcontinuous tearing morphology，confirming typical ductilefracturecharacteristics.Comparative theoreticalcalculation indicates themean diameter formulaachieves merely2.2%deviation fromexperimentalresults， significantlyoutperformingthe Faupel formula，thusvalidating itssuperiorityfor burstpresure predictionin thinwalled reservoirs.

Keywords：Airsuspension，Airreservoir，Burstpressure，Numerical simulation

1前言

气弹簧、车身加速度传感器、空气弹簧减振器总成、空气悬架控制器（ElectronicControlUnit，ECU）储气罐、供气系统、分配阀和悬架高度传感器等，集成了底盘系统调校、电子控制和橡胶工艺。（剩余4435字）