双杆磁流变油脂阻尼器的设计与建模

IF 1.5 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Xudan Ye, Jiqiang Dong, Baolin Wu, Ouyang Qing, Jiong Wang, Guang Zhang
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引用次数: 0

摘要

为了改善磁流变(MR)流体应用于磁流变装置时沉降性差和易泄漏的问题,本研究制作了一种含有 70% 羰基铁粉的磁流变润滑脂(MRG)材料,并使用安东帕流变仪测试了其在不同电流下的流动曲线。试验选用宾汉模型,并使用 Origin 软件进行拟合计算。此外,鉴于 MRG 流变特性的优势,还设计了应用于减震系统的双杆 MRG 阻尼器。在设计过程中,对主要部件参数和磁场路尺寸进行了计算。磁流变阻尼器实物完成后,对其机械性能进行了测试,结果表明当电流为 1.8 A 时,最大阻尼力达到 1.1 kN。使用决定系数比较了两个模型的预测精度,发现 Bouc Wen 模型能更准确、更有效地模拟磁流变油脂阻尼器的动态特性,其决定系数大于 0.99。最后,通过最小二乘法拟合确定了模型参数与电流之间的关系,大部分参数与电流之间呈三次多项式拟合关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design and modeling of a double rod magnetorheological grease damper

In order to improve the problem of poor sedimentation and easy leakage when applied to MR devices of magnetorheological (MR) fluid, this work made a magnetorheological grease (MRG) material with 70 % carbonyl iron powder and used Anton Paar rheometer to test its flow curve under different currents. The Bingham model is selected and the Origin software is used for fitting calculation. In addition, due to the advantages of rheological properties of MRG, the double rod MRG damper applied to the vibration reduction system was designed. The calculation of the main component parameters and the dimensions of the magnetic field Road size were conducted during the design process. After the physical completion of the MRG damper, its mechanical performance was tested, and the results showed that the maximum damping force reached 1.1 kN when the current was 1.8 A. Subsequently, the Bouc Wen model and Dahl model were introduced to describe the nonlinear behavior of the magnetorheological grease damper. The prediction accuracy of the two models was compared using a coefficient of determination, and it was found that the Bouc Wen model can more accurately and efficiently simulate the dynamic characteristics of the magnetorheological grease damper, with a coefficient of determination value above 0.99. Finally, the relationship between model parameters and current was established through least squares fitting, and most of the parameters were fitted with a cubic polynomial relationship with current.

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来源期刊
Journal of Mechanical Science and Technology
Journal of Mechanical Science and Technology 工程技术-工程:机械
CiteScore
2.90
自引率
6.20%
发文量
517
审稿时长
7.7 months
期刊介绍: The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering. Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.
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