Effects of micron–nano composite iron particle powders on the tribological properties of magnetic fluids used for a nonlinear energy sink vibration absorber
Low-frequency vibration control is a crucial challenge within the realm of fluid physics, and in this paper, a novel magnetic compound fluid (MCF) has been developed to produce a magnetic fluid nonlinear energy sink (MF-NES) with optimum energy consumption efficiency. The mixed doping of bi-disperse...
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Veröffentlicht in: | Physics of fluids (1994) 2023-09, Vol.35 (9) |
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creator | Nie, Songlin Gong, Fei Ji, Hui Zhang, Le Ma, Zhonghai Yin, Fanglong |
description | Low-frequency vibration control is a crucial challenge within the realm of fluid physics, and in this paper, a novel magnetic compound fluid (MCF) has been developed to produce a magnetic fluid nonlinear energy sink (MF-NES) with optimum energy consumption efficiency. The mixed doping of bi-dispersed nano-sized iron particles (NIPs) and micrometer-sized carbonyl iron particles (CIPs) can generate a load-bearing structure between the inertial mass and the MF-NES shell with a reduced friction coefficient. The effectiveness and sensitivity of the MF-NES mechanism is significantly enhanced, particularly in responding to low frequency vibrations. To predict and quantify the friction coefficient of the MF, a novel hybrid approach combining data handling and a genetic algorithm model was developed and rigorously validated through empirical data obtained from the experiments and demonstrated that the bi-dispersed NIPs/CIPs MCF had a notably lower friction coefficient, making it adept at responding to low-frequency and even ultra-low-frequency vibrations. |
doi_str_mv | 10.1063/5.0168499 |
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To predict and quantify the friction coefficient of the MF, a novel hybrid approach combining data handling and a genetic algorithm model was developed and rigorously validated through empirical data obtained from the experiments and demonstrated that the bi-dispersed NIPs/CIPs MCF had a notably lower friction coefficient, making it adept at responding to low-frequency and even ultra-low-frequency vibrations.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0168499</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-2834-7885</orcidid><orcidid>https://orcid.org/0009-0003-5181-9681</orcidid><orcidid>https://orcid.org/0000-0002-1370-3691</orcidid><orcidid>https://orcid.org/0000-0002-8197-5242</orcidid><orcidid>https://orcid.org/0000-0003-1011-5613</orcidid><orcidid>https://orcid.org/0000-0003-0767-7439</orcidid></addata></record> |
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subjects | Carbonyls Coefficient of friction Energy consumption Fluid dynamics Friction reduction Genetic algorithms Iron Load bearing elements Magnetic fluids Magnetic properties Mechanical properties Physics Tribology Vibration control |
title | Effects of micron–nano composite iron particle powders on the tribological properties of magnetic fluids used for a nonlinear energy sink vibration absorber |
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