Modeling and analysis of a metal rubber vibration isolation system considering the nonlinear stiffness characteristics

Liu, Yujun; Liu, Jing; Pan, Guang; Huang, Qiaogao

doi:10.1063/5.0118415

Cited by 10 publications

(4 citation statements)

References 24 publications

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“…In order to deeply explore the fretting wear characteristics of metal wires with curvature, Li et al (2023) constructed a fretting wear evolution model of metal wire with curvature and successfully fabricated a wire isolator. Liu et al (2023) proposed a ringlike metal rubber isolator that can reduce the vibration of automobile underwater gliders. Ma et al (2023) proposed the design of a nonlinear metal-rubber isolator under random vibration, to solve the low-frequency vibration isolation effectively.…”

Section: Introductionmentioning

confidence: 99%

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Optimization design of a two-stage multidirectional vibration isolation system for large airborne equipment

Zhu,

Wu,

et al. 2023

MMMS

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Purpose Improvement and optimization design of a two-stage vibration isolation system proposed in this paper are conducted to ensure the device of electronic work effective.Design/methodology/approach The proposed two-stage vibration isolation system of airborne equipment is optimized and parameterized based on multi-objective genetic algorithm.Findings The results show that compared with initial two-stage vibration isolation system, the angular vibration of the two-stage vibration isolation system becomes 3.55 × 10-4 rad, which decreases by 89%. The linear isolation effect is improved by at least 67.7%.Originality/value The optimized two-stage vibration isolation system effectively improves the vibration reduction effect, the resonance peak is obviously improved and the reliability of the mounting bracket and the shock absorber is highly improved, which provides an analysis method for two-stage airborne equipment isolation design under complex dynamic environment.

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Section: Introductionmentioning

confidence: 99%

“…(2023) constructed a fretting wear evolution model of metal wire with curvature and successfully fabricated a wire isolator. Liu et al. (2023) proposed a ring-like metal rubber isolator that can reduce the vibration of automobile underwater gliders.…”

Section: Introductionmentioning

confidence: 99%

Optimization design of a two-stage multidirectional vibration isolation system for large airborne equipment

Zhu,

Wu,

et al. 2023

MMMS

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“…[ 3 ] Furthermore, in metal‐to‐metal joints [ 4 ] and dissimilar metal welds, [ 5 ] vibrational waves can cause more premature and substantial damage due to impedance mismatch and cavitation or internal reflecting standing waves. [ 4,5 ] Industries have focused on vibrational/sound isolation by damping using rubber mounting ( Figure A), [ 6 ] utilizing the nonlinear effective stiffness of structural materials, [ 7 ] or design optimization using liquid cavities, [ 8 ] to prevent mechanical failure. Those designs are practically valuable and commonly used.…”

Section: Introductionmentioning

confidence: 99%

Defect‐Free Sound Insulator Using Single Metal‐Based Friction Stir Process Array

et al. 2023

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Metals are excellent conductors for phonon transportation such as vibration, sound, and heat. Generally, metal sound insulators require multimaterial structure or defects and unimetal sound insulators are challenging. Therefore, a design of a defect‐free sound insulator made by single alloys with multiple friction stir processes (FSPs) is proposed. Periodic friction stir processing can induce superlattice‐like local mechanical properties’ modifications. By experimental acoustic characterization, it is observed that FSP can introduce clear acoustic–elastic property contrast on an aluminum plate by the presence of stir zone and heat‐affected zones. In numerical simulations, the signature FSP‐induced property profile is periodically and parallelly arranged on a long aluminum plate. The transmission gap frequencies are present on the frequency spectrum with the sound propagation direction perpendicular to the FSP paths. Disorder offsets on FSP periodicity are further introduced. Anderson localization is found on a resonance frequency, which provides −11 dB sound reduction by an exponential decay. Due to the finite design length, the slight disorder can also enhance sound insulation in the periodic transmission gap frequency. With analysis and comparison with different configurations, the best performance in the models can achieve −30 dB sound insulation in the 350 mm‐long aluminum alloy plate with 14 parallel FSPs.

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“…For instance, Ma et al [25] proposed a strategy to analyze the response of a metal rubber isolator under random vibrations by effectively designing the stiffness and damping coefficients via its manufacturing parameters. Liu et al [26] described the design process of a metal rubber isolator, with its manufacturing parameters greatly influenced the mechanical properties of the device. Schroth and Wirz [27] proposed a design of experiments to define the dependent factors of an analytical equation that describes the nonlinear force deflection of metal cushions.…”

Section: Introductionmentioning

confidence: 99%

Contribution to the Characterization of Vibration Isolators Based on Metal Mesh

Garcia,

De-Juan,

Ríos

et al. 2023

Machines

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The prediction of the behavior of vibration isolators is essential for effective and efficient design of these devices, as well as for accurately characterizing the isolator behavior. In this work, an experimental study was performed to characterize the behavior of metal-mesh isolators. Although these elements’ performance is of great interest because of their usage in several applications, their characterization is complex due to their nonlinear nature, among other factors. This study’s aim was to obtain the quasi-static behavior of these isolators, although dynamic tests are required for their complete characterization. These quasi-static tests allowed for the highlighting of some characteristics in a simpler and faster manner and also provided a starting point for designing future dynamic tests. The quasi-static tests performed resulted in the calculation of the hysteresis cycle under different operating conditions and manufacturing parameters. The study of different insulator characteristics, such as the energy dissipation coefficient and stiffness, led to interesting conclusions about the isolator performance. From the results, it was observed that the relative density affected most the nonlinear behavior of the insulator. Moreover, to correctly characterize their behavior, not only the Coulomb’s damping but also the viscous damping had to be considered.

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Modeling and analysis of a metal rubber vibration isolation system considering the nonlinear stiffness characteristics

Cited by 10 publications

References 24 publications

Optimization design of a two-stage multidirectional vibration isolation system for large airborne equipment

Optimization design of a two-stage multidirectional vibration isolation system for large airborne equipment

Defect‐Free Sound Insulator Using Single Metal‐Based Friction Stir Process Array

Contribution to the Characterization of Vibration Isolators Based on Metal Mesh

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