Research on nonlinear stiffness and damping of bellows-type fluid viscous damper

Jiao, Xiaolei; Zhang, Jinxiu; Yan, Yajing; Zhao, Hongchao

doi:10.1007/s11071-020-06146-9

Cited by 7 publications

(2 citation statements)

References 26 publications

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“…The damping piston is used to produce damping. Micro-vibrations have small amplitude, usually in the range of 10 -6 g to 10 -3 g [16]. So the displacement amplitude of micro-vibration will be very small.…”

Section: Dynamic Modeling Of the Damper Under Displacement Excitation...mentioning

confidence: 99%

A reduced-order model of the three-parameter fluid viscous damper with consideration of fluid compressibility and bellows volume deformation

Jiao¹,

Zhang²,

Li³

et al. 2023

Nonlinear Dyn

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The three-parameter fluid viscous damper is used to isolate micro-vibration produced by control torque gyro (CMG) in satellite. In this paper, the damper is simplified by a single tube fluid viscous damper and two springs connected to the damping piston. With consideration of the principal stiffness of the bellows and the contraction and expansion effect of the damping orifice, the approximate analytical nonlinear model of the damper is established and verified by the computation fluid mechanics (CFD) method.Based on this analytical model, the displacement response of the damper and correction coefficient of hydraulic resistance are analyzed, the nonlinear characteristics in the frequency domain are also revealed.Furthermore, the energy consumptions of the nonlinear model and linear model are researched. The results show that the damper has an obvious amplitude at the first resonance peak, but not obvious at the second resonance peak. The vibration amplitude of the damping piston is only um level in the highfrequency domain. The correction coefficient of the hydraulic resistance at the resonance peak is much higher than other frequencies, which causes a significant nonlinear behavior. In addition, the energy 2 consumption of the nonlinear model is larger than that of the linear model at the resonance peak, and the larger the resonance peak, the more obvious the phenomenon is. This means that the nonlinear damping can be used to further improve the suppression of the resonance peak of the three-parameter fluid viscous damper.

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Section: Dynamic Modeling Of the Damper Under Displacement Excitation...mentioning

confidence: 99%

A reduced-order model of the three-parameter fluid viscous damper with consideration of fluid compressibility and bellows volume deformation

Jiao¹,

Zhang²,

Li³

et al. 2023

Nonlinear Dyn

Self Cite

View full text Add to dashboard Cite

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“…Its basic principle is that the fluid inside the damper generates throttling resistance through a specific hole or device clearance and then dissipates the energy input to the damper from the outside. Viscous dampers made according to the characteristics of fluid materials often have high energy consumption (Abdi et al, 2016; Jiao et al, 2021; Lim and Kim, 2020; Ma et al, 2020). Therefore, the choice of fluid material has a very important influence on the energy dissipation and vibration reduction of viscous damper.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of a novel high performance multi-walled carbon nano-polyvinylpyrrolidone/silicon-based shear thickening fluid damper

Sun,

Wang,

Zhang

2024

Journal of Intelligent Material Systems and Structures

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A novel high performance multi-walled carbon nano-polyvinylpyrrolidone/silicon-based shear thickening fluid (MWCNTs-PVP/SiO2-STF), abbreviated and subsequently referred to as MPS-STF, is developed in this paper. The rheological properties of the MPS-STF are investigated, and the viscosity model of MPS-STF is established. Furthermore, the MPS-STF based viscous fluid damper (MPS-STF-VFD) is designed according to the rheological characteristics of the novel fluid. The impact of loading frequencies, displacement amplitudes and the numbers of piston holes on the dynamic performance of the damper is studied through sophisticated multiple cases loading tests using MTS facility. The test results show that the loading frequency, displacement amplitudes and the number of piston holes have great influence on the rheological properties of MPS-STF. This directly affects the maximum damping force and heat dissipation capacity of MPS-STF-VFD. Finally, the mechanical model of the damper is established based on the principle of fluid mechanics. The simulation results agree well with the experimental data. The high damping performance of the MPS-STF-VFD can be achieved based on the characteristics of the modified fluid. Relevant results reported in this paper can provide an important solution for the development and application of damping technology in engineering structures.

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Analysis of liquid spring damper for vertical landing reusable launch vehicle with network-based methodology

Yue

Titurus²,

Li³

et al. 2022

Nonlinear Dyn

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This paper presents the network-based modeling, validation and analysis of the nonlinear liquid spring damper model under vertical landing conditions of reusable launch vehicle. The impedance function of damper model is derived first. Then, its mechanical and hydraulic networks are newly established based on the hydro-mechanical analogy and network-based analysis. By comparing the networks between the corresponding symmetric and asymmetric structures, the meaning of each branch in the network is elucidated. After that, the validity of the network-based model for the liquid spring damper is confirmed by comparison against the experimentally verified nonlinear model in both frequency and time domain. The force and energy absorption characteristics of the damper model are further decomposed, and, specifically, the influence of the orifice area and orifice length on the attenuation performance is studied. The results show that the network-based model provides predictions consistent with those generated by the nonlinear model. The main discrepancy is attributed to the inaccuracy caused by the equivalent fluid bulk modulus. The network-based analysis indicates that the orifice area mainly influences the damping force in the network, which further affects the loads and efficiency of the damper. The orifice length mainly influences the inertia force in the network, which should be limited to a small value. The proposed novel interpretation of the damper models and responses under impact conditions constitutes a framework suitable for systematic design of typically highly nonlinear landing systems in reusable launch vehicles.

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Research on nonlinear stiffness and damping of bellows-type fluid viscous damper

Cited by 7 publications

References 26 publications

A reduced-order model of the three-parameter fluid viscous damper with consideration of fluid compressibility and bellows volume deformation

A reduced-order model of the three-parameter fluid viscous damper with consideration of fluid compressibility and bellows volume deformation

Experimental investigation of a novel high performance multi-walled carbon nano-polyvinylpyrrolidone/silicon-based shear thickening fluid damper

Analysis of liquid spring damper for vertical landing reusable launch vehicle with network-based methodology

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