Design, Analysis, and Experimental Evaluation of a Magnetorheological Damper With Meandering Magnetic Circuit

Cheng, Ming; Chen, Z. B.; Xing, Jianwei

doi:10.1109/tmag.2018.2797090

Cited by 38 publications

(31 citation statements)

References 33 publications

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“…The relevant physical quantity of the damper in the magnetic field was obtained. Cheng et al (2018) proposed a novel MR damper with a meandering magnetic circuit. A theoretical model of the MR damper was set up, and a finite element analysis was performed to verify the principle of the damper.…”

Section: Introductionmentioning

confidence: 99%

Internal magnetic field tests and magnetic field coupling model of a three-coil magnetorheological damper

Yang

Guo

et al. 2020

Journal of Intelligent Material Systems and Structures

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Magnetorheological damper is a typical semi-active control device. Its output damping force varies with the internal magnetic field, which is a key factor affecting the dynamic performance of the magnetorheological dampers. Existing studies about the magnetic field of magnetorheological dampers are limited to theoretical analysis; thus, this study aims to experimentally explore the complicated magnetic field distribution inside the magnetorheological dampers with multiple coils. First, the magnetic circuit of a three-coil magnetorheological damper was theoretically analyzed and designed, and the finite element model of the three-coil magnetorheological damper was set up to calculate the magnetic induction intensities of the damping gaps in different currents and numbers of coil turns. A three-coil magnetorheological damper embedded with a Hall sensor was then manufactured based on the theoretical and finite element analysis, and internal magnetic field tests under different conditions were carried out to obtain the actual magnetic induction intensities. At last, the magnetic field coupling model of the three-coil magnetorheological damper was proposed by introducing a coupling coefficient to describe the complex magnetic field distribution due to the strong coupling effect of the three coils, and the results calculated by the proposed model agreed well with the finite element analysis and magnetic field test data. The proposed model lays a foundation for the optimal design of the magnetic circuit and the mathematical model of multi-coil magnetorheological dampers.

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Section: Introductionmentioning

confidence: 99%

Internal magnetic field tests and magnetic field coupling model of a three-coil magnetorheological damper

Yang

Guo

et al. 2020

Journal of Intelligent Material Systems and Structures

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“…A MR damper with high performance not only needs excellent MR fluid [5] but also should have a great damping force and a large dynamic range under certain constraints of geometric dimensions [6]. In order to improve the performance of MR dampers, many methods have been proposed to improve the internal structure of MR dampers, such as multistage piston [7], annular radial channel design [8], variable resistance gap [9], parallel double coil arrangement [10], and meandering magnetic circuit design [11]. However, the new structures resulted from these methods are usually complicated MR damper structures with expensive manufacturing costs and many maintenance difficulties, which significantly limit their engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Design and Multiobjective Optimization of Magnetorheological Damper considering the Consistency of Magnetic Flux Density

Dong

Feng

Chen

et al. 2020

Shock and Vibration

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The consistency of magnetic flux density of damping gap (CMDG) represents the balancing magnetic flux density in each damping gap of magnetorheological (MR) dampers. It can make influences on the performances of MR dampers and the accuracy of relevant objective functions. In order to improve the mechanical performances of the MR damper with a two-stage coil, the function for calculating CMDG needs to be found. By establishing an equivalent magnetic circuit model of the MR damper, the CMDG function is derived. Then, the multiobjective optimization function and the working flow of optimal design are presented by combining the parallel-plate model of the MR damper with the function posed before. Taking the damping force, the dynamic range, the response time, and the CMDG as the optimization objective, and the external geometric dimensions of the SG-MRD60 damper as the bound variable, this paper optimizes the internal geometric dimensions of MR damper by using a NSGA-III algorithm on the PlatEMO platform. The results show that the obtained scheme in Pareto-optimal solutions has existed with better performance than that of SG-MRD60 scheme. According to the results of the finite element analysis, the multiobjective optimization design including the CMDG function can improve the uniformity of magnetic flux density of the MR damper in damping gap, which meets the requirements of manufacture and application.

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“…They are optimally designed for only typical working conditions (Bottasso et al, 2012), which renders it unable to meet different damping requirements for helicopter in different working scenarios like takeoff, flight, landing, and taxiing. As an intelligent material, magnetorheological fluid (MRF) can change its rheological properties in milliseconds under the presence of external magnetic fields, and the change is continuous, controllable, and reversible (Bai et al, 2019; Cheng et al, 2018; Yu et al, 2016). The advantages such as high yield stress, wide damping amplitude modulation, short response time, and good stability of MRF make it possess extensive application in helicopter (Gandhi et al, 2001; Zhao et al, 2004), building (Cesmeci et al, 2019), vehicle (Ha et al, 2013; Oh et al, 2019), and other fields (Bai et al, 2015; Choi and Wereley, 2008; Weber, 2014).…”

Section: Introductionmentioning

confidence: 99%

Design and modeling of an innovative magnetorheological fluid-elastomeric damper with compact structure

Jiang

Rui

Wang

et al. 2020

Journal of Intelligent Material Systems and Structures

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The aim of the present work is to propose an innovative magnetorheological fluid-elastomeric damper which is applied to small amplitude vibration reduction occasions, especially for helicopter rotor. The damper is compact in structure and possesses the controllable dynamic characteristics. The magnetic circuit structure of the damper is designed and optimized emphatically in order to ensure its rationality. After the completion of the prototype, the damper is tested by a hydraulically actuated dynamic testing system under different excitation amplitudes, excitation frequencies, and input currents. Subsequently, a new phenomenological model is established to describe the nonlinear behavior of the proposed magnetorheological fluid-elastomeric damper. A series of parameter identification is conducted to fit both this model and Bouc–Wen model to experimental data for the purpose of verifying the accuracy of the established model.

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Design, Analysis, and Experimental Evaluation of a Magnetorheological Damper With Meandering Magnetic Circuit

Cited by 38 publications

References 33 publications

Internal magnetic field tests and magnetic field coupling model of a three-coil magnetorheological damper

Internal magnetic field tests and magnetic field coupling model of a three-coil magnetorheological damper

Design and Multiobjective Optimization of Magnetorheological Damper considering the Consistency of Magnetic Flux Density

Design and modeling of an innovative magnetorheological fluid-elastomeric damper with compact structure

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