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首页> 外文会议>Conference on Active and passive smart structures and integrated systems; 20090309-12; San Diego, CA(US) >Analytical modeling and experimental validation of a magnetorheological mount
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Analytical modeling and experimental validation of a magnetorheological mount

机译：磁流变支架的分析模型和实验验证

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摘要

Magnetorheological (MR) fluid has been increasingly researched and applied in vibration isolation devices. To date, the suspension system of several high performance vehicles has been equipped with MR fluid based dampers and research is ongoing to develop MR fluid based mounts for engine and powertrain isolation. MR fluid based devices have received attention due to the MR fluid's capability to change its properties in the presence of a magnetic field. This characteristic places MR mounts in the class of semiactive isolators making them a desirable substitution for the passive hydraulic mounts. In this research, an analytical model of a mixed-mode MR mount was constructed. The magnetorheological mount employs flow (valve) mode and squeeze mode. Each mode is powered by an independent electromagnet, so one mode does not affect the operation of the other. The analytical model was used to predict the performance of the MR mount with different sets of parameters. Furthermore, in order to produce the actual prototype, the analytical model was used to identify the optimal geometry of the mount. The experimental phase of this research was carried by fabricating and testing the actual MR mount. The manufactured mount was tested to evaluate the effectiveness of each mode individually and in combination. The experimental results were also used to validate the ability of the analytical model in predicting the response of the MR mount. Based on the observed response of the mount a suitable controller can be designed for it. However, the control scheme is not addressed in this study.
机译：磁流变（MR）流体已得到越来越多的研究，并应用于隔振设备中。迄今为止，一些高性能车辆的悬架系统已经配备了基于MR流体的减震器，并且正在进行研究以开发用于发动机和动力总成隔离的基于MR流体的支座。基于MR流体的设备由于在磁场存在下MR流体能够改变其性能而受到关注。此特性将MR安装座置于半主动隔离器的类别中，使其成为被动液压安装座的理想替代品。在这项研究中，建立了混合模式MR座架的分析模型。磁流变底座采用流量（阀）模式和挤压模式。每种模式均由独立的电磁体供电，因此一种模式不会影响另一种模式的操作。分析模型用于预测具有不同参数集的MR支架的性能。此外，为了生产实际的原型，使用分析模型来确定底座的最佳几何形状。该研究的实验阶段是通过制造和测试实际的MR支架进行的。对制造的安装座进行了测试，以单独或组合评估每种模式的有效性。实验结果还用于验证分析模型预测MR支架响应的能力。根据观察到的安装座响应，可以为其设计合适的控制器。但是，本研究未解决控制方案。

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