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Simulation of a magnetorheological damper with a combination of a commercial CFD and FEA code

机译:结合商业CFD和FEA代码对磁流变阻尼器进行仿真

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摘要

Magnetorheological fluids (MRFs) show a high but reversible rise of viscosity upon application of an external magnetic field. This effect can be utilized in controllable dampers, when a deep understanding of the mechanisms for this behavior is available. Today the design of dampers is still quite empiric so it is favorable to be able to simulate the damper geometries first. Measurements on MR dampers are shown and compared with the results of a combined simulation of the problem with a CFD code for the flow and a FEA code for the magnetic field distribution in the damper geometry. It is shown that the flow resistance of the orifices that corresponds to the damping force of the damper can be predicted with this simulation using a simple fluid model.
机译:磁流变流体(MRF)在施加外部磁场时显示出高但可逆的粘​​度上升。当可以深入了解这种行为的机理时,可以在可控制的阻尼器中利用这种效果。如今,阻尼器的设计仍是经验丰富的,因此能够首先模拟阻尼器的几何形状是有利的。显示了对MR阻尼器的测量结果,并将其与问题的组合模拟结果进行了比较,并使用了流体的CFD代码和阻尼器几何形状中的磁场分布的FEA代码。结果表明,可以通过使用简单流体模型的模拟来预测与阻尼器阻尼力相对应的孔口流阻。

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