Are Single Polymer Network Hydrogels with Chemical and Physical Cross-Links a Promising Dynamic Vibration Absorber Material? A Simulation Model Inquiry

Kari, Leif

doi:10.3390/ma13225127

Cited by 8 publications

(6 citation statements)

References 91 publications

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“…Equations ( 35 ) and ( 36 ) can be numerically implemented through a convolutional approach where both the history of stress and strain are needed [ 70 ]. More details regarding fractional integrals can be found in Lubich [ 71 ]; Kempfle et al [ 72 ]; Wang and Kari [ 39 ]; Alotta et al [ 70 ]; Kari [ 73 , 74 ]. It should be noted that a direct calculation of the Mittag–Leffler function in Equation ( 36 ) is not suggested.…”

Section: Particularization Of the Constitutive Modelmentioning

confidence: 99%

Constitutive Model of Isotropic Magneto-Sensitive Rubber with Amplitude, Frequency, Magnetic and Temperature Dependence under a Continuum Mechanics Basis

Wang

Kari

2021

Polymers

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A three-dimensional nonlinear constitutive model of the amplitude, frequency, magnetic and temperature dependent mechanical property of isotropic magneto-sensitive (MS) rubber is developed. The main components of MS rubber are an elastomer matrix and magnetizable particles. When a magnetic field is applied, the modulus of MS rubber increases, which is known as the magnetic dependence of MS rubber. In addition to the magnetic dependence, there are frequency, amplitude and temperature dependencies of the dynamic modulus of MS rubber. A continuum mechanical framework-based constitutive model consisting of a fractional standard linear solid (SLS) element, an elastoplastic element and a magnetic stress term of MS rubber is developed to depict the mechanical behavior of MS rubber. The novelty is that the amplitude, frequency, magnetic and temperature dependent mechancial properties of MS rubber are integrated into a whole constitutive model under the continuum mechanics frame. Comparison between the simulation and measurement results shows that the fitting effect of the developed model is very good. Therefore, the constitutive model proposed enables the prediction of the mechanical properties of MS rubber under various operating conditions with a high accuracy, which will drive MS rubber’s application in engineering problems, especially in the area of MS rubber-based anti-vibration devices.

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Section: Particularization Of the Constitutive Modelmentioning

confidence: 99%

Constitutive Model of Isotropic Magneto-Sensitive Rubber with Amplitude, Frequency, Magnetic and Temperature Dependence under a Continuum Mechanics Basis

Wang

Kari

2021

Polymers

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“…From Equation (1), it can be observed that the modulus magnitude bω a increases with increasing frequency and the loss factor tan (aπ/2) is a constant value for the fractional derivative element. For more details regarding the fractional derivative model, please refer to Lubich (1986), Lion and Kardelky (2004), and Kari (2017Kari ( , 2020.…”

Section: Constitutive Modelingmentioning

confidence: 99%

Magneto-Sensitive Rubber in a Vehicle Application Context – Exploring the Potential

Wang

Shen³

et al. 2021

Front. Mater.

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The application of magneto-sensitive (MS) rubber in a vehicle vibration control area is likely to be expected. This conclusion is based on the following two reasons: the maturity of fabrication of MS rubber which meets the application requirement and the feasibility of the constitutive model of MS rubber that accurately reflects its mechanical performance. Compared with the traditional rubber, small ferromagnetic particles are embedded in the elastomer of MS rubber, leading to a change of mechanical properties when an external magnetic field is applied. Therefore, devices with MS rubber, can be viewed as a semi-active actuator. In this study, MS rubber with a relative high increase in the magneto-induced modulus is fabricated and characterized. Furthermore, a one-dimensional constitutive model to depict the magnetic field-, frequency-, and strain amplitude-dependent dynamic modulus of MS rubber is applied. Finally, simulations of a MS rubber semi-active suspension under a bump and a random ground excitation with different control strategies on a quarter vehicle model are conducted to illustrate the feasibility of the MS rubber in the vehicle vibration control application context.

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“…Further, scholars have adopted the variable stiffness material as a spring element at present. The shape memory alloy, a linear spring, and hydrogels [13][14][15] usually serve as the spring element, because their stiffness is regulatable under external excitations. These DVAs are classified as active vibration absorbers.…”

Section: Introductionmentioning

confidence: 99%

A magnetorheological vibration absorber with bidirectional tunability for pipelines

Xie,

Fu,

Zhu

et al. 2023

Smart Mater. Struct.

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Magnetorheological elastomer (MRE) had been employed as a tunable stiffness element in dynamic vibration absorber (DVA) due to its remarkable magnetic tunability. However, the natural frequency of MRE-based DVA could only be tuned towards high frequency under magnetic fields, which failed to solve or even exacerbate the low-frequency pipeline vibration. To tackle this issue, an innovative DVA (H-DVA) with bi-directional magnetic tunability was proposed in this paper. The hard magnetic MRE filled by NdFeB particles was selected as the core tunable stiffness element in H-DVA. Besides, the discretization distribution design scheme for the mass oscillators was adopted to improve the flexibility of H-DVA. Then, the magnetic field simulation and resonance frequency shifting test of H-DVA under different magnetic fields were completed to validate the bi-directional magnetic tunability. Lastly, the vibration absorption effect was verified in a self-established experimental pipeline system. The experiment results demonstrated that the resonance frequency of the proposed H-DVA exhibited a maximum frequency shift of approximately -2.7Hz under reversed magnetic field. Compared to H-DVA working in zero field state, the acceleration magnitude of pipeline vibration was furtherly reduced by 8.8% when applying -1.5A to H-DVA under 55Hz excitation. Similarly, the acceleration magnitude was furtherly reduced by 22.2% when applying 2A to H-DVA under 85Hz excitation. Thus, these findings confirmed that the H-DVA proposed in this paper not only achieved the bi-directional magnetic tunability, but also improved the vibration absorption effect for pipeline vibration.

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Are Single Polymer Network Hydrogels with Chemical and Physical Cross-Links a Promising Dynamic Vibration Absorber Material? A Simulation Model Inquiry

Cited by 8 publications

References 91 publications

Constitutive Model of Isotropic Magneto-Sensitive Rubber with Amplitude, Frequency, Magnetic and Temperature Dependence under a Continuum Mechanics Basis

Constitutive Model of Isotropic Magneto-Sensitive Rubber with Amplitude, Frequency, Magnetic and Temperature Dependence under a Continuum Mechanics Basis

Magneto-Sensitive Rubber in a Vehicle Application Context – Exploring the Potential

A magnetorheological vibration absorber with bidirectional tunability for pipelines

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