Abstract
In order to reveal the influence of rotating speed on the stability of torque transmission by magnetorheological fluid, magnetic force, centrifugal force, gravity, stokes resistance and buoyancy of particles are calculated and analyzed. Besides, the rule of particles distribution is simulated by the Fluent software. On this basis, experiments are carried out based on magnetorheological transmission device. The results indicate that the centrifugal force due to rotating speed has greater effect on particles concentration as there is no magnetic field, and particle concentration mainly appears at the outer diameter of disk, but its effects are concentrated only in a smaller area, which will enhance the local working magnetic field. When the particles are subjected to a strong magnetic field, the magnetic force between the particles is much greater than the centrifugal force; thus, the influence of rotating speed can be ignored. The relationship between transmittable torque and rotating speed is not linear due to the hydraulic torque at the speed of 0–80 r/min.
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Acknowledgements
This research was supported by National Natural Science Foundation of China (51875560 and 51575512), Jiangsu Natural Science Foundation (BK20190155), as well as Priority Academic Program Development of Jiangsu Higher Education Institutions.
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Tian, Zz., Wu, Xf., Xie, Fw. et al. Influence of Rotating Speed on Stability of Torque Transmission by Magnetorheological Fluid. Iran J Sci Technol Trans Mech Eng 45, 91–101 (2021). https://doi.org/10.1007/s40997-020-00386-1
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DOI: https://doi.org/10.1007/s40997-020-00386-1