基于商用车液阻悬置参数的动态特性分析

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中图分类号： ；U469.72 收稿日期：2025-11-20 DOI：10.19999/j.cnki.1004-0226.2026.02.005

Dynamic Characteristics Analysis of Commercial-vehicle Hydraulic Mounts Based on Mount Parameters

Long Aijunl He Xinfeng² Zhou HuanlWang Wen1 Liu Yongfu 1.CRRC Times Electric Vehicle Co.，Ltd.，Zhuzhou412007，China 2.BOGE Rubber& Plastics（Zhuzhou）Co.，Ltd.，Zhuzhou 412007，China

Abstract：Thispaperaddresesthediicultyinauratelydeterminingthestructuralandfluidparametersofathird-generation fixed-decouplerdiapragmhdraulicmount，whichcompromisestheobustnesofid-to-low-frequencydynamicpredictions.Anite gratedfinite-element-teory-experimentframeworkisproposedforparameterdentificatioandrapidperformancepredictionSpecificall，themainubberspring’staticstiffesandteeuivalentpistoareaareobtaedfromanbaqusfiniteelementmodelUnder alaminar-flowassumption，theinertiatrack'sinertanceandhydraulcdampingcoeficietarecalculatedusingfluid-mechanicstheory Based on MTS831 dynamic tests（ 1～100Hz ， 1mm amplitude），the upper-chamber volumetric stiffness is back-calculated from the fixedpointoftagstfsseitidpameetisticopoatedintomplex-stisoeltosilatete mount dynamics over 0～100Hz andto validate the results against experiments.The study shows the Key parameters，including a mainspring dynamic stiffness of 301N/mm ，are identified，and the predicted peak frequencies and amplitude trends show good agreement withthemeasureddata.Theproposedmethodprovidesannginering-orientedbasisforparametermatchingandperformanceoptimization of hydraulic mounts.

Keywords：Commercial-vehicle;Hydraulic engine mount;Dynamiccharacteristic

1前言

液阻悬置是主要应用于乘用车与商用车动力总成的悬置系统。（剩余4401字）