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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering >Performance analysis of a semi-active suspension system using coupled CFD-FEA based non-parametric modeling of low capacity shear mode monotube MR damper
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Performance analysis of a semi-active suspension system using coupled CFD-FEA based non-parametric modeling of low capacity shear mode monotube MR damper

机译：基于CFD-FEA的低容量剪切模式MONOTUBE MR DAMPER的耦合CFD-FEA的半主动悬架系统性能分析

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摘要

In this work, an approach for formulation of a non-parametric-based polynomial representative model of magnetorheological damper through coupled computational fluid dynamics and finite element analysis is presented. Using this, the performance of a quarter car suspension subjected to random road excitation is estimated. Initially, prepared MR fluid is characterized to obtain a relationship between the field-dependent shear stress and magnetic flux density. The amount of magnetic flux induced in the shear gap of magnetorheological damper is computed using finite element analysis. The computed magnetic field is used in the computational fluid dynamic analysis to calculate the maximum force induced under specified frequency, displacement and applied current using ANSYS CFX software. Experiments have been conducted to verify the credibility of the results obtained from computational analysis, and a comparative study has been made. From the comparison, it was found that a good agreement exists between experimental and computed results. Furthermore, the influence of fluid flow gap length and frequency on the induced force of the damper is investigated using the computational methods (finite element analysis and computational fluid dynamic) for various values. This proposed approach would serve in the preliminary design for estimation of magnetorheological damper dynamic performance in semi-active suspensions computationally prior to experimental analysis.
机译：在这项工作中，提出了一种通过耦合计算流体动力学和有限元分析制定通过耦合计算流体动力学和有限元分析的非参数基多项式代表模型的方法。使用这一点，估计了随机道路激励的四分之一汽车悬架的性能。最初，制备的MR流体的特征在于获得现场依赖性剪切应力和磁通密度之间的关系。使用有限元分析计算在磁流变测压器的剪切间隙中感应的磁通量。计算流体动力学分析中使用计算的磁场来计算使用ANSYS CFX软件根据指定频率，位移和施加电流引起的最大力。已经进行了实验以验证从计算分析获得的结果的可信度，并进行了比较研究。从比较中，发现实验和计算结果之间存在良好的一致性。此外，使用计算方法（有限元分析和计算流体动力学）来研究流体流动间隙长度和频率对阻尼器的诱导力的影响各种值。该提出的方法将在试验分析之前计算在基于半主动悬浮液中估计磁流变学阻尼动态性能的初步设计。

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