Augmentation of damping force by modifying the geometrical shape of the MR damper

Ansari, Mohd Anis; Meher, Prabina Kumar; Bisoi, Alfa; Biswas, Agnimitra

doi:10.1007/s40430-023-04243-5

Cited by 2 publications

(1 citation statement)

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“…[7,8] Magnetorheological fluid (MRF) damper is one of the vibrations attenuating systems that shows the variable damping force with supplied current to the MRF coil. [9] The MRF damper is a smart type of damper, consisting of base oil, magnetic particles, and additives. [10] The combination of these three components helps in changing the MRF's properties instantly by applying an external magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Investigations of Sustainable Biodegradable Oil and Magnetic Particle‐Based Magnetorheological Fluid Dampers for Vibration Attenuation of a Rotor Dynamic System

Ansari,

Sarmah,

Bisoi

et al. 2024

Physica Status Solidi (a)

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This article aims to study the physical characterization and performance of a material‐based magnetorheological fluid (MRF) dampers for vibration attenuation of a high‐speed rotor–motor system near resonance. Four samples are synthesized by combining electrolytic iron and carbonyl iron (CI) with Castor and Karanja oil and experimentally investigated for their contribution to vibration attenuation. The results demonstrate effective vibration attenuation of the biodegradable oil‐based MRF damper than the nonbiodegradable oil‐based MRF damper. The best vibration attenuation is observed in the case of moderately viscous MRF. CI‐based samples exhibit a lower sedimentation rate, hence recommended for MRF. The vibration amplitude is maximum for the Castor oil‐based MRF damper, however, is minimum for the Karanja oil‐based MRF damper. The steady and transient results of vibration amplitudes are obtained and analyzed for different currents supplied to the MRF damper. The range of unstable speed near resonance is also obtained. The prepared samples show higher attenuation of 6–25% than Sample 5. The vibration amplitude attenuation of Sample 4 and Sample 5 are 47% and 22%, respectively. The findings of this study carry significant implications for controlling the vibration of the dynamic system using an eco‐friendly damping system.

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