Quasistatic and low-velocity impact properties of entangled metallic wire material–silicone rubber composites

Zheng, Xiaoyuan; Wu, Yiwan; Zheng, Chao; Bai, Hongbai; Liu, Rong

doi:10.1016/j.jmrt.2023.02.044

Cited by 11 publications

(2 citation statements)

References 38 publications

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“…Vibration is a common physical phenomenon in engineering and technology, affecting the operation of the equipment and the mechanical power system while reducing its lifespan [ 1 , 2 ]. The traditional passive vibration isolation system has been widely used in vibration isolation due to its simple structure and low cost [ 3 , 4 , 5 ]. However, traditional vibration isolation systems cannot be adjusted in real time based on changes in external excitation frequency.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristic Analysis of a Toothed Electromagnetic Spring Based on the Improved Bouc—Wen Model

et al. 2023

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Electromagnetic spring active isolators have attracted extensive attention in recent years. The standard Bouc–Wen model is widely used to describe hysteretic behavior but cannot accurately describe asymmetric behavior. The standard Bouc–Wen model is improved to better describe the dynamic characteristic of a toothed electromagnetic spring. The hysteresis model of toothed electromagnetic spring is established by adding mass, damping, and asymmetric correction terms with direction. Subsequently, the particle swarm optimization algorithm is used to identify the parameters of the established model, and the results are compared with those obtained from the experiment. The results show that the current has a significant impact on the dynamic curve. When the current increases from 0.5 A to 2.0 A, the electromagnetic force sharply increases from 49 N to 534 N. Under different excitations and currents, the residual points predicted by the model proposed in this work fall basically in the horizontal band region of −20–20 N (for an applied current of 1.0 A) and −40–80 N (for an application of 4.5 mm/s). Furthermore, the maximum relative error of the model is 12.75%. The R2 of the model is higher than 0.98 and the highest value is 0.9993, proving the accuracy of the established model.

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Section: Introductionmentioning

confidence: 99%

Dynamic Characteristic Analysis of a Toothed Electromagnetic Spring Based on the Improved Bouc—Wen Model

et al. 2023

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“…Passive vibration isolation does not require an energy source or an external power or control system during operation. Common passive vibration isolation systems are usually composed of elastic elements, damping elements, or inertial elements, such as steel springs, rubber pads, and polymer materials [5][6][7][8]. Due to the high precision requirements of precision manufacturing and measurements and the need for environmental noise reduction [9], conventional passive control methods can hardly meet the increasingly stringent vibration control requirements.…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis of the Toothed Electromagnetic Spring Based on the Finite Element Model

Zheng,

Zhang,

Lou

et al. 2023

Aerospace

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Active vibration control shows excellent performance in vibration isolation. In this work, the finite element model of a toothed electromagnetic spring (TES) is established using ANSYS Maxwell software. Subsequently, a static characteristic experiment of the TES is carried out, and the validity of the model is verified. Based on the established finite element model, the influence of key structural parameters on the static characteristics of the electromagnetic spring is analyzed. The results show that the parameters of the magnetic teeth have a significant impact on the performance of the electromagnetic spring. As the number of teeth increases, the electromagnetic force first increases and then decreases. With the increase in the tooth height or width, the maximum electromagnetic force gradually increases to the maximum value and then stabilizes. It should be noted that the tooth width simultaneously affects the maximum electromagnetic force, stiffness characteristics, and effective working range of the TES. This work provides a basis for further exploring the application of electromagnetic springs within the field of active vibration control.

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Dynamic constitutive modelling and mullins effect of elastic‐porous metal rubber

Zheng,

Chen,

Liu

et al. 2024

Materialwissenschaft Werkst

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Elastic‐porous metal rubber, commonly employed in dynamic environments, has received special attention nowadays. Utilization of equivalent metal rubber models in the finite element analysis becomes imperative because of the complexity of the spatial network structure and the extensive numerical calculations involved in it. In this work, the nonlinear characteristics of metal rubber are represented by hyperelastic constitutive models, and the Mullins effect is discussed. The relative deviations of the displacement‐load curve among the test results and three dynamic models are analyzed: the hysteretic Bergström–Boyce model, the viscoelastic generalized Maxwell model, and the nonlinear spring‐viscous damping element model. The results indicate that the damage value of the Mullins effect is positively correlated with the magnitude of the strain during unloading, and the performance degradation of metal rubber is weakened after multiple cycles. The time domain characteristics of the generalized Maxwell model demonstrate that the dynamic analysis of metal rubber at different frequencies have obvious deviations. The rate correlation of metal rubber affects the dynamic stiffness under different amplitudes This is reason that the nonlinear spring‐viscous damping element model is deviated. Regardless of the frequency or amplitude, the Bergström–Boyce model has been found to exhibit a lower relative deviation and match well with the dynamic experiment.

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Quasistatic and low-velocity impact properties of entangled metallic wire material–silicone rubber composites

Cited by 11 publications

References 38 publications

Dynamic Characteristic Analysis of a Toothed Electromagnetic Spring Based on the Improved Bouc—Wen Model

Dynamic Characteristic Analysis of a Toothed Electromagnetic Spring Based on the Improved Bouc—Wen Model

Parametric Analysis of the Toothed Electromagnetic Spring Based on the Finite Element Model

Dynamic constitutive modelling and mullins effect of elastic‐porous metal rubber

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