Study on the Influence of Synthesized Nano Ferrite Powder and Micron Ferrite Powder on Damping of a Single Degree of Freedom System

IF 0.6 4区工程技术 Q4 MECHANICS

Mechanika Pub Date : 2023-08-09 DOI:10.5755/j02.mech.32055

Easu Dakshnamoorthy, Siddharthan Arjunan, Amrutha Radhakrishnan, A. Gopal

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Abstract

Magneto Rheological Fluid (MRF) damper has been opted as a promising semi active element of advanced suspension system. This work focuses on the damping nature of magnetorheological fluid under the influence of a magnetic field strength, size and shape of the of the iron oxide particles. A reduced scale single degree of freedom quarter car model with two stage magnetorheological damper, viscosity measurement setup, synthesized and commercially available Fe2O3 powders are used for the experimental study. An air cooled electro-dynamic shaker, Data acquisition system, accelerometers and the Lab view software acquires and analyzes the response of the quarter car model. X-ray Diffraction and Scanning electron microscopy characterize the morphology of iron oxide particles. The vertical acceleration, the displacement, the transmissibility ratio and the damping characteristics are analyzed based on the response of the top plate at different frequencies of base excitation. The results show that the magnetorheological fluid made with nano iron oxide powder has better damping characteristics than that of micron sized iron oxide powder

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合成纳米铁氧体粉末和微米铁氧体粉末对单自由度系统阻尼影响的研究

磁流变液阻尼器作为先进悬架系统的半主动元件已被广泛采用。本文研究了磁场强度、氧化铁颗粒的大小和形状对磁流变流体阻尼特性的影响。采用两级磁流变阻尼器、粘度测量装置、合成的和市购的Fe2O3粉末进行了缩小比例的单自由度四分之一汽车模型的实验研究。采用风冷式电动激振器、数据采集系统、加速度计和Lab view软件对四分之一车型的响应进行采集和分析。x射线衍射和扫描电镜表征了氧化铁颗粒的形貌。分析了顶板在不同基底激励频率下的垂向加速度、位移、传递率和阻尼特性。结果表明，纳米氧化铁粉制备的磁流变液比微米级氧化铁粉具有更好的阻尼特性

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来源期刊

Mechanika 物理-力学

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： The journal is publishing scientific papers dealing with the following problems: Mechanics of Solid Bodies; Mechanics of Fluids and Gases; Dynamics of Mechanical Systems; Design and Optimization of Mechanical Systems; Mechanical Technologies.