Prototype and test of a novel rotary magnetorheological damper based on helical flow

Yu, Jianqiang; Dong, Xiaomin; Wang, Wen

doi:10.1088/0964-1726/25/2/025006

Cited by 46 publications

(38 citation statements)

References 28 publications

(41 reference statements)

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“…Research in MR materials was initiated by Jacob Rabinow in 1948 focusing on magnetorheological fluids (MRFs) [1]. MR fluids have a widespread use in mitigating vibration [2][3][4][5]and have been used in semi-active damping devices [6][7][8], particularly dampers in buildings [5,[9][10][11][12][13][14][15], bridges and suspension systems [16][17][18][19][20], shock absorbers [21][22][23], rotary actuators [24], clutches and brakes [1,[25][26][27][28][29][30].…”

Section: Literature Reviewmentioning

confidence: 99%

A novel phenomenological model for dynamic behavior of magnetorheological elastomers in tension–compression mode

Vatandoost

Norouzi

Alehashem

et al. 2017

Smart Mater. Struct.

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Tension-compression operation in MR elastomers (MREs) offers both the most compact design and superior stiffness in many vertical load-bearing applications such as MRE bearing isolators in bridges and buildings, suspension systems and engine mounts in cars, and vibration control equipment. It suffers, however, from lack of good computational models to predict device performance, and as a result shear-mode MREs are widely used in the industry, despite their low stiffness and load-bearing capacity. We start with a comprehensive review of MREs modeling and their dynamic characteristics, showing previous studies have mostly focused on dynamic behavior of MRE in the shear mode, though the MRE strength and MR effect are greatly decreased at high strain amplitudes, due to increasing distance between the magnetic particles. Moreover, the characteristic parameters of the current models either frequency, strain or magnetic field are constant; hence, new model parameters must be recalculated for new loading conditions. This is an experimentally time consuming and computationally expensive task, and no models capture the full dynamic behavior of the MREs at all loading conditions. In this study, we present an experimental setup to test MREs in a coupled tension-compression mode, as well as a novel phenomenological model which fully predicts the stress-strain behavior of the as a function of magnetic flux density, loading frequency and strain. We use a training set of experiments to find the experimentally derived model parameters, which can predict by interpolation the MRE behavior in the relatively large continuous range of frequency, strain and magnetic field. We also challenge the model to make extrapolating predictions and compare to additional experiments outside the training experimental data set with good agreement. Further development of this model would allow design and control of engineering structures equipped with tension-compression MREs and all the advantages they offer.

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Section: Literature Reviewmentioning

confidence: 99%

A novel phenomenological model for dynamic behavior of magnetorheological elastomers in tension–compression mode

Vatandoost

Norouzi

Alehashem

et al. 2017

Smart Mater. Struct.

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“…The ring conformability is modeled using finite element method (FEM) [24,25] for a keystone compression ring. The approach solving the problem is based on penalty method-based optimization that minimizes the strain energy of the piston ring [26][27][28][29][30].…”

Section: Ring-cylinder Bore Contactmentioning

confidence: 99%

Power Cylinder System for Internal Combustion Engines

Cheng¹

2018

Improvement Trends for Internal Combustion Engines

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Piston ring pack is one of the most critical components for engine performance, durability, and emission. It has become a decisive factor for engine life. From previous study, a three-dimensional ring model has been developed using finite element method to study the interactions between the ring-cylinder liner and the ring-groove side interfaces. The ring-cylinder and ring-groove side contacts are modeled using finite element method based on penalty method optimization algorithm. Ring deformation, reaction forces at the ring sides and ring face, and the twist angles along the entire ring circumference are obtained from the model. However, the dynamic behavior of the ring is still less understood. In this study, the dynamic response of the ring over an engine cycle is studied for a second compression ring with a non-symmetric cross section.

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“…For two decades, there were many types of research about MRF because of its responsiveness, low power, and tidy structure subjected to the magnetic field [1,7,14]. An example of daily needs that could be used from MRF was for automotive industries and health that were developed in the form of magnetorheological brakes (MRB) [12,[15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Torque Characterization of T-shaped Magnetorheological Brake Featuring Serpentine Magnetic Flux

Nya’Ubit

Priyandoko

Imaduddin

et al. 2020

ARFMTS

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Recently, T-shaped Magnetorheological Brake (MRB) usually utilize more than one wire coil electromagnetic to maximize magnetic flux reaching all Magnetorheological Fluid (MRF) gaps. This research was focused on the usage of a single wire coil on MRB with uniformly magnetic flux distribution. To achieve the goal, the serpentine magnetic flux profile was adopted to maximize all MRF gaps that only use a single coil. Firstly, the magnetic circuit which implementing serpentine magnetic flux was design in a two-dimensional model. It was then followed by magnetostatic simulation using Finite Element Method Magnetics (FEMM) to determine the amount of magnetic flux density. The data were then employed to calculate the braking torque. After having the final dimension and completing the workshop drawing, an MRB prototype was fabricated. Thus, the prototype was characterized using the braking test apparatus to figure out the torque profiles. Moreover, the experimental results were compared to the simulation results. This process justified the validity of the proposed mathematical model of the T-shaped MRB. It was investigated that the maximum braking torque from simulations and experimental works were 1.51 Nm and 1.91 Nm at 1 A, respectively. Overall the between differences of simulations and experimental works were about 10%. It is therefore, the mathematical model can be used for further application in the actuator control system.

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Prototype and test of a novel rotary magnetorheological damper based on helical flow

Cited by 46 publications

References 28 publications

A novel phenomenological model for dynamic behavior of magnetorheological elastomers in tension–compression mode

A novel phenomenological model for dynamic behavior of magnetorheological elastomers in tension–compression mode

Power Cylinder System for Internal Combustion Engines

Torque Characterization of T-shaped Magnetorheological Brake Featuring Serpentine Magnetic Flux

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