Experimental study and modeling of a novel magnetorheological elastomer isolator

Yang, Jian; Du, Haiping; Li, Weihua; Li, Yancheng; Li, Jianchun; Sun, Shuaishuai; Deng, Huaxia

doi:10.1088/0964-1726/22/11/117001

Cited by 141 publications

(117 citation statements)

References 29 publications

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“…Based on the phenomenological model for magnetorheological dampers proposed by Spencer [24], the damping force MRF can be obtained by the following equations: The detailed parameter identification method has been given in our previous paper [25]. Fig.…”

Section: Test Resultsmentioning

confidence: 99%

A seat suspension with a rotary magnetorheological damper for heavy duty vehicles

Sun

Ning

Yang

et al. 2016

Smart Mater. Struct.

106

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A seat suspension with a rotary magnetorheological damper for heavy duty vehicles AbstractThis paper presents the development of an innovative seat suspension working with a rotary magnetorheological (MR) fluid damper. Compared with a conventional linear MR damper, the well-designed rotary MR damper possesses several advantages such as usage reduction of magnetorheological fluid, low sealing requirements and lower costs. This research starts with the introduction of the seat suspension structure and the damper design, followed by the property test of the seat suspension using an MTS machine. The field-dependent property, amplitudedependent performance, and the frequency-dependent performance of the new seat suspension are measured and evaluated. This research puts emphasis on the evaluation of the vibration reduction capability of the rotary MR damper by using both simulation and experimental methods.

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Section: Test Resultsmentioning

confidence: 99%

A seat suspension with a rotary magnetorheological damper for heavy duty vehicles

Sun

Ning

Yang

et al. 2016

Smart Mater. Struct.

106

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“…Considering that the friction has similar hysteresis phenomenon as MR damper, the inner friction is modelled into MR damper force together. The seat suspension model is defined as: (Yang et al, 2013;Du et al, 2013). The optimized values of those parameters are determined by fitting the model with experimental data using MATLAB parameter estimation toolbox.…”

Section: Model Identificationmentioning

confidence: 99%

Integrated active and semi-active control for seat suspension of a heavy duty vehicle

Ning

Sun

et al. 2017

Journal of Intelligent Material Systems and Structures

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In this article, an integrated active and semi-active seat suspension for heavy duty vehicles is proposed, and its prototype is built; an integrated control algorithm applied measurable variables (suspension relative displacement and seat acceleration) is designed for the proposed seat prototype. In this seat prototype, an active actuator with low maximum force output (70 N), which is insufficient for an active seat suspension to control the resonance vibration, is applied together with a rotary magnetorheological damper. The magnetorheological damper can suppress the high vibration energy in resonance frequency, and then a small active force can further improve the seat suspension performance greatly. The suspension's dynamic property is tested with a MTS system, and its model is identified based on the testing data. A modified on-off controller is applied for the rotary magnetorheological damper. A H ͚ controller with the compensation of a disturbance observer is used for the active actuator. Considering the energy saving, the control strategy is designed as that only when the magnetorheological damper is in the off state (0 A current), the active actuator will have active force output, or the active actuator is off. Both simulation and experiment are implemented to verify the proposed seat suspension and controller. In the sinusoidal excitations experiment, the acceleration transmissibility of integrated control seat has lowest value in resonance frequency and frequencies above the resonance, when compared with power on (0.7 A current), power off (0 A current) and semi-active control seat. In the random vibration experiment, the root mean square acceleration of integrated control seat suspension has 47.7%, 33.1% and 26.5% reductions when compared with above-mentioned three kinds of seat suspension. The power spectral density comparison indicates that the integrated seat suspension will have good performance in practical application. The integrated active and semi-active seat suspension can fill energy consumption gap between active and semi-active control seat suspension. AbstractIn this paper, an integrated active and semi-active seat suspension for heavy duty vehicles is proposed, and its prototype is built; an integrated control algorithm applied measurable variables (suspension relative displacement and seat acceleration) is designed for the proposed seat prototype. In this seat prototype, an active actuator with low maximum force output (70 N), which is insufficient for an active seat suspension to control the resonance vibration, is applied together with a rotary magnetorheological (MR) damper. The MR damper can suppress the high vibration energy in resonance frequency, and then a small active force can further improve the seat suspension performance greatly. The suspension's dynamic property is tested with a MTS system, and its model is identified based on the testing data. A modified on-off controller is applied for the rotary MR damper. A ∞ controller with the compensation of a disturbance ...

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“…To characterise the behaviours of the devices, different hysteresis models, i.e. Bouc-Wen model [22] and Strain-stiffening model [23], have been proposed. Large scale experimental testing will be conducted in late 2014 and early 2015 to prototype smart base isolation system utilizing UTS shake …”

Section: Adaptive Magnetorheological Elastomer Basementioning

confidence: 99%

Future Intelligent Civil Structures: Challenges and Opportunities

Askari

et al. 2014

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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-An intelligent civil structure offers ultimate protection to its structure, contents and occupants in terms of safety and functionality against undesired dynamic loadings and structural deficiency. In this paper, the concept of the future intelligent civil structure featuring self-adaptive, selfprognostic, self-sensing, self-powering and self-repairing abilities, is proposed. A decade research efforts from Centre for Built Infrastructure Research, University of Technology Sydney, towards the development and concept proof of such intelligent structure is reviewed.

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Experimental study and modeling of a novel magnetorheological elastomer isolator

Cited by 141 publications

References 29 publications

A seat suspension with a rotary magnetorheological damper for heavy duty vehicles

A seat suspension with a rotary magnetorheological damper for heavy duty vehicles

Integrated active and semi-active control for seat suspension of a heavy duty vehicle

Future Intelligent Civil Structures: Challenges and Opportunities

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