Experimental research on energy dissipation based on damping of magnetic fluid

Yang, Wenrong; Su, Jianzheng; Wei, Dejie; Zhang, Yumeng; Chen, Ying; Yang, Qingxin; Yang, Xiaoguang

doi:10.1088/2053-1591/abc190

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…In 1978, a viscous-fluid inertia damper that utilized the levitation characteristics of a ferrofluid was created and used to dampen the rotary shaft of a stepping motor [46]. Subsequently, scholars have conducted research on the levitation force [47,48] and energy dissipation [49,50]. An MF dynamic absorber was proposed based on a related theoretical study [51], which could reduce the vibration of flexible overhanging structures on spacecraft.…”

Section: Introductionmentioning

confidence: 99%

Typical dampers and energy harvesters based on characteristics of ferrofluids

Han

et al. 2022

Friction

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Ferrofluids are a type of nanometer-scale functional material with fluidity and superparamagnetism. They are composed of ferromagnetic particles, surfactants, and base liquids. The main characteristics of ferrofluids include magnetization, the magnetoviscous effect, and levitation characteristics. There are many mature commercial ferrofluid damping applications based on these characteristics that are widely used in numerous fields. Furthermore, some ferrofluid damping studies such as those related to vibration energy harvesters and biomedical devices are still in the laboratory stage. This review paper summarizes typical ferrofluid dampers and energy harvesting systems from the 1960s to the present, including ferrofluid viscous dampers, ferrofluid inertia dampers, tuned magnetic fluid dampers (TMFDs), and vibration energy harvesters. In particular, it focuses on TMFDs and vibration energy harvesters because they have been the hottest research topics in the ferrofluid damping field in recent years. This review also proposes a novel magnetic fluid damper that achieves energy conversion and improves the efficiency of vibration attenuation. Finally, we discuss the potential challenges and development of ferrofluid damping in future research.

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Section: Introductionmentioning

confidence: 99%

Typical dampers and energy harvesters based on characteristics of ferrofluids

Han

et al. 2022

Friction

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Development and Implementation of Energy-Efficient Magnetorheological Fluid Bypass Damper for Prosthetics Limbs Using a Fuzzy-Logic Controller

et al. 2022

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Walking behaviour in amputees with lower-limb loss is absent from shock-absorbing properties. A damper can be used to reduce the impact of ground reaction force (GRF) during heel strikes. Magnetorheological fluid (MRF) damper is deemed the best option for this application as it includes the advantages of both passive and active dampers. An enhanced MRF damper is essential in supplying the appropriate current and damping force levels. Therefore, an energy-efficient design is required to prolong the battery life used by MRF dampers in prosthetic limbs. This paper investigates two fluids of different properties and magnetic particle volume content. A bypass damper was used to observe the response of both fluids. The findings highlighted that an MRF with a higher percentage of solid weight could produce a more significant damping force with a lesser amount of applied current. This work presents a simulation study on implementing the energy-efficient MRF damper utilizing a Fuzzy-PID controller in a prosthetic limb.

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Experimental study on static and dynamic mechanical properties of composite buffer with entangled metallic wire materials and viscous fluid

Wu,

Rao,

Cheng

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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This article proposes a composite buffer based on two characteristics: porous throttling and damping energy dissipation of entangled metal wire material (EMWM). A series of quasi-static tests and low-speed impact tests were carried out to analyze its stiffness and damping characteristics. The filling degrees of cushioning force curves and energy absorption rate were proposed as quantitative evaluation indicators for the composite buffer under low-speed impact. Test results showed that the stiffness and damping of the composite buffer layer increase with the increasing density of the EMWM damping layer under quasi-static conditions, but the static loss factor fluctuates. Under low-speed impact load, the composite buffer demonstrates stable force output, with an energy absorption rate above 85% and favourable filling degrees. This work provides a practical reference for its engineering application.

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Experimental research on energy dissipation based on damping of magnetic fluid

Cited by 3 publications

References 28 publications

Typical dampers and energy harvesters based on characteristics of ferrofluids

Typical dampers and energy harvesters based on characteristics of ferrofluids

Development and Implementation of Energy-Efficient Magnetorheological Fluid Bypass Damper for Prosthetics Limbs Using a Fuzzy-Logic Controller

Experimental study on static and dynamic mechanical properties of composite buffer with entangled metallic wire materials and viscous fluid

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