Acta Physica Sinica, Volume. 69, Issue 9, 098301-1(2020)
Figures & Tables(15)
Fig. 2. Schematic diagram of the experimental device for constructing gradient-like structure.
Fig. 3. Vibration transfer characteristic of the homogeneous quasi-solid magnetorheological fluid.
Fig. 5. Comparison of vibration transfer characteristic of quasi-solid magnetorheological fluid under different magnetic field: (a) 30 mT; (b) 50 mT; (c) 70 mT; (d) 100 mT.
Fig. 6. Error between theoretical results and experimental results.
Fig. 8. Vibration characteristic of the gradient-like structure under different magnetic field intensity.
Fig. 9. Comparison between gradient-like structure and homogeneous magnetorheological fluid: (a) 50 mT; (b) 70 mT; (c) 100 mT
Fig. 10. Comparison between experimental and numerical results of vibration transfer characteristic of gradient like structure: (a) 50 mT; (b) 70 mT; (c) 100 mT
Table 1.
Characteristic parameters of the magnetorheological fluid.
磁流变液性能参数
View tableView in ArticleTable 1.
Characteristic parameters of the magnetorheological fluid.
磁流变液性能参数
性能名称 平均粒径 颗粒密度 载液密度 零场黏度 颗粒体积分数 d/μm ${\rho _{\rm{f}}}$ ${\rho _{\rm{r}}}$ $\eta $ $\theta $ 参数值 5.5 6698 998 0.2425 27%
Table 2.
Comparison of numerical results and experimental results.
修正后的理论模型和实验结果对比
View tableView in ArticleTable 2.
Comparison of numerical results and experimental results.
修正后的理论模型和实验结果对比
修正倍数 振级落差 理论值/dB 实验值/dB 误差 2倍 9.6876 15.4419 37.31% 5倍 14.4739 6.27% 10倍 18.2995 18.51% 15倍 19.8275 28.40% 20倍 20.7795 34.57%
Table 3.
Comparison of numerical results and experimental results (5–10 times).
修正后的理论模型和实验结果对比(5—10倍)
View tableView in ArticleTable 3.
Comparison of numerical results and experimental results (5–10 times).
修正后的理论模型和实验结果对比(5—10倍)
修正倍数 振级落差 理论值/dB 实验值/dB 误差 5倍 14.4739 15.4419 6.27% 6倍 15.5312 0.58% 7倍 16.4132 6.29% 8倍 17.1524 11.08% 9倍 17.7743 15.10%
Table 4.
Comparison of numerical results and experimental results (30–100 Hz).
修正后的理论模型和实验结果对比(30—100 Hz)
View tableView in ArticleTable 4.
Comparison of numerical results and experimental results (30–100 Hz).
修正后的理论模型和实验结果对比(30—100 Hz)
输入弹性波频率 振级落差 理论值/dB 实验值/dB 误差 30 Hz 5.1457 5.6042 8.18% 40 Hz 6.8610 6.7979 0.93% 50 Hz 8.5762 8.5199 0.66% 60 Hz 10.2915 10.2858 0.06% 70 Hz 12.0067 11.5679 4.3% 80 Hz 13.7219 12.8765 6.51% 90 Hz 14.4372 13.8086 4.55% 100 Hz 15.5312 15.4419 0.58%
Table 5.
Error between experimental and theoretical results.
实验与理论结果误差
View tableView in ArticleTable 5.
Error between experimental and theoretical results.
实验与理论结果误差
编号 实验参数/mT 误差 实验1 50 2.856% 实验2 70 2.233% 实验3 100 3.585%
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Dan Zhao, Shuai-Hu Wang, Shao-Gang Liu, Jin Cui, Li-Qiang Dong.
Paper Information
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Received: Mar. 3, 2020
Accepted: --
Published Online: Nov. 26, 2020
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