Novel semiactive suspension using a magnetorheological elastomer (MRE)-based  absorber and adaptive neural network controller  for systems with input constraints

Nguyen, Xuan Bao; Komatsuzaki, Toshihiko; Truong, Hoa Thi

doi:10.5194/ms-11-465-2020

Cited by 23 publications

(6 citation statements)

References 36 publications

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“…MRE manufacture consists of several materials such as Carbonyl Iron Powder (CIP), silicone oil, and silicone rubber [1,3,16,18,22]. As shown in Figure 1, the steps for making an MRE generally consist of three steps.…”

Section: Methodsmentioning

confidence: 99%

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Developing adjustable stiffness for smart material of magnetorheological elastomer to diminish vibration

Priyandoko,

Suwandono,

Sasongko

et al. 2023

Sinergi

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Many vibration isolators, such as passive vehicle mounting devices, have an inflexible stiffness. This article presents the development of a smart material vibration isolator based on magnetorheological elastomer (MRE), which has adjustable stiffness to minimize unwanted vibrations. The objective of this research is to first create a design for the vibration isolator, and then simulate a magnetic circuit. The Finite Element Method Magnetics (FEMM) software was employed to simulate the effectiveness of the electromagnetic circuit in generating a magnetic field through the vibration isolator by employing MRE samples. Pure iron was chosen as the material for the housing of the vibration isolator test rig. To attain an optimal magnetic field, an inventive design of the magnetic circuit, including examination of the wire type, size, and coil turn number, along with the housing material of the test rig, was performed. The study analyzed the performance of the MRE vibration isolator concerning different current inputs in the coil. The results indicate that the stiffness value of the MRE-based isolator system can be more effectively modified by increasing the current inputs. Therefore, a larger current input leads to a greater change in stiffness.

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Section: Methodsmentioning

confidence: 99%

“…There have been many researchers who studied how to improve the performance of vibration dampers using MRE material [6,8,16,17,18,19]. They study performance using magnetic field analysis.…”

Section: Introductionmentioning

confidence: 99%

Developing adjustable stiffness for smart material of magnetorheological elastomer to diminish vibration

Priyandoko,

Suwandono,

Sasongko

et al. 2023

Sinergi

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“…In Albanese and Cunefare (2003a, b), a compression-mode MRE vibration absorber based on the controllable compression stiffness characteristics of the MRE was devised, the frequency shift characteristics were tested, and the control method by the experiments was investigated. Ni et al (2009) and Deng and Gong (2007) designed a shearmode MRE dynamic vibration absorber; after that its frequency shift characteristics were tested by experiments. His research team also proposed a shear-compression hybridmode MRE vibration absorber, and the numerical simulation is carried out to authenticate the consistency of the designed structure.…”

Section: P Gao Et Al: a New Mre Torsional Vibration Absorber: Desigmentioning

confidence: 99%

A new magnetorheological elastomer torsional vibration absorber: structural design and performance test

et al. 2021

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Abstract. The semi-active torsional vibration absorber can effectively reduce the torsional vibration of the power-train system. In this paper, a new type of variable stiffness torsional vibration absorber with a magnetorheological elastomer (MRE) as an intelligent controlling element is designed, and the modal analysis, frequency-tracking scheme, and damping effects have been studied. A transient dynamic simulation is utilized to validate the rationality of the mechanical structure, the magnetic field parameters of the absorber are matched, and the magnetic circuit simulation analysis and the magnetic field supply analysis are carried out to verify the closed magnetic circuit. The principle prototype of the innovative vibration absorber is manufactured, the magnetic field strength of the absorber is tested by a Gauss meter, and the results show the efficacy of magnetizing the vibration absorber with a conductive slip ring by solving the magnetizing problem of the rotating parts of the vibration absorber. A special-purpose test rig with a torsional vibration exciter as a power source has been implemented. A comparative experiment has been carried out to test the frequency shift characteristics and authenticate the vibration-reduction effect of the new MRE torsional vibration absorber.

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“…As for other stiffness variable joints, several rubber joints based on magnetorheological (MR) materials were proposed. MR materials have the advantages of fast and reverse response under the stimulation of external field, which have been widely used in vehicle suspension [21][22][23][24][25], shock absorption [26][27][28][29] and robotics [30]. In our previous research, a magnetorheological elastomer (MRE) rubber joint [31] and a magnetorheological fluid (MRF) rubber joint [32] were proposed.…”

Section: Introductionmentioning

confidence: 99%

Development of a magnetorheological elastomer rubber joint with fail-safe characteristics for high-speed trains

Gong¹,

Sun²,

Yang³

et al. 2022

Smart Mater. Struct.

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The stiffness of the train’s rubber joint at the primary suspension system has a crucial influence on the operation stability and curve-passing performance. As traditional rubber joint only provides unadjustable parameters, they cannot meet the conflicting stiffness requirements when the train is running at high speed on straight track and passing through the curve track. To solve this problem, this paper proposed a new rubber joint with fail-safe characteristics based on magnetorheological elastomer (MRE). The joint stiffness is controlled by a hybrid magnetic field generated by permanent magnets and electromagnets. With this hybrid magnetic field, the initial stiffness of the MRE joint can be designed to be hard so as to suppress the hunting motions and vibrations of wheelsets and thus keep the trains’ high-speed stability; furthermore, the stiffness can decrease by energizing the electromagnets when passing through a curve track. With this characteristic, the joint can guarantee the safety of the train at high operation speed even when the joint control system fails. The prototype of the MRE joint was fabricated and assembled. Stiffness controllability of the MRE joint was tested using an MTS machine. The result reveals that the stiffness of this MRE joint can be controlled effectively. According to the testing results, a new phenomenological model was built to predict the joint’s dynamic performance. Then this established model was integrated into dynamic models of trains to numerically evaluate the new joint’s influence on the train’s stability and trafficability. The evaluation result shows that the proposed MRE joint is fully effective on providing controllable stiffness to satisfy the conflicting stiffness requirement with fail-safe characteristics.

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Novel semiactive suspension using a magnetorheological elastomer (MRE)-based absorber and adaptive neural network controller for systems with input constraints

Cited by 23 publications

References 36 publications

Developing adjustable stiffness for smart material of magnetorheological elastomer to diminish vibration

Developing adjustable stiffness for smart material of magnetorheological elastomer to diminish vibration

A new magnetorheological elastomer torsional vibration absorber: structural design and performance test

Development of a magnetorheological elastomer rubber joint with fail-safe characteristics for high-speed trains

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