A high efficiency design was explored for meso-scale MR valves (<25 mm O.D.). The main design issues in the MR valve involve the magnetic circuit and nonlinear fluid mechanics. The performance of the MR valve will be limited by saturation phenomenon in the magnetic circuit and by the yield stress of the MR fluid. The non-dimensional plug thickness is evaluated as a basis for evaluating the valve efficiency. In this paper, design parameters of the MR valve were studied and an optimal performance was designed using these parameters. A maximum magnetic flux density at the gap was achieved in the optimized valve design based on a constraint on the outer diameter limitation. Valve performance was verified with simulation. A flow mode bypass damper system was fabricated and was used to experimentally validate the valve performance.
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机译：探索了高效率的设计，用于中间尺度MR阀门（<25 mm O.D.）。 MR阀中的主要设计问题涉及磁路和非线性流体力学。 MR阀的性能将受磁路中的饱和现象和MR流体的屈服应力的限制。非尺寸插头厚度被评估为评估阀效率的基础。在本文中，研究了MR阀的设计参数，使用这些参数设计了最佳性能。基于外径限制的约束，在优化的阀门设计中实现了间隙处的最大磁通密度。阀门性能被仿真验证。制造流动模式旁路阻尼系统，用于通过实验验证阀性能。
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