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首页> 外文会议>Twelfth International Conference on Adaptive Structures and Technologies, Oct 15-17, 2001, University of Maryland >ELECTRORHEOLOGICAL DAMPER ANALYSIS USING AN EYRING CONSTITUTIVE RELATIONSHIP
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ELECTRORHEOLOGICAL DAMPER ANALYSIS USING AN EYRING CONSTITUTIVE RELATIONSHIP

机译：基于眼本构关系的电流变阻尼器分析

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摘要

We validate and assess the applicability of an Eyring constitutive model. The Bingham plastic model has a zero shear rate discontinuity, which leads to inaccuracies in modeling and simulation, and is characterized by two rheological constants for a constant field: yield stress and postyield viscosity. The Eyring model has a smooth transition through the zero shear rate condition, and also has two rheological constants for a constant field. An ER (electrorheological) damper having a damping level comparable to a shock absorber for a small-sized passenger car damper is manufactured, and its performance is predicted using the Eyring model. To accurately identify the rheological parameters of the Eyring model, a parameter identification method was used. The damping force versus piston displacement and velocity behaviors of the ER damper are experimentally measured with respect to applied electric field and excitation frequency. To validate the Eyring model, the experimental results are compared with predictions in the damping force versus piston displacement and velocity behaviors.
机译：我们验证并评估了Eyring本构模型的适用性。 Bingham塑性模型的剪切速率不连续性为零，这导致建模和仿真不准确，并且对于一个恒定的场，具有两个流变常数：屈服应力和屈服后粘度。 Eyring模型在零剪切速率条件下具有平稳过渡，并且对于恒定场还具有两个流变常数。制造具有与小型乘用车减震器的减震器相当的减震水平的ER（电流变）减震器，并使用Eyring模型预测其性能。为了准确识别Eyring模型的流变参数，使用了一种参数识别方法。相对于外加电场和励磁频率，通过实验测量了ER阻尼器的阻尼力与活塞位移和速度特性之间的关系。为了验证Eyring模型，将实验结果与阻尼力与活塞位移和速度行为的预测值进行了比较。

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