- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | DONG Xiaomin, WANG Kaixiang, LI Pingyang. Design of Magnetorheological Damper Based on Magnetorheological Composite Materials[J]. Journal of Southwest Jiaotong University, 2023, 58(4): 896-902. doi: 10.3969/j.issn.0258-2724.20220454
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Traditional magnetorheological dampers involve sedimentary working media, high sealing requirements, rapidly increasing damper stiffness, and serious energy consumption attenuation under medium- and high-frequency excitation. In order to address these problems, a magnetorheological composite material with excellent settlement stability and low sealing requirements was prepared and tested, and an improved Herschle-Bulkley model was established to characterize the mechanical properties of the composite material. Furthermore, a shear magnetorheological damper was designed and manufactured based on the composite material, and the performance response law of the damper under medium- and high-frequency excitation was tested by designed experiments. The results show that the dynamic stiffness of the damper increases from 4.87 × 105 N/m to 6.29 × 105 N/m when the test frequency is increased from 5 Hz to 20 Hz under the current excitation of 3 A, and the single-cycle energy consumption of the damper under the full-band is about 0.04 J, which verified the energy consumption capacity of the designed magnetorheological damper under medium- and high-frequency vibrations.
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