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논문 기본 정보

자료유형
학술저널
저자정보
Zuzhi Tian (China University of Mining and Technology) Xiangfan Wu (Xuzhou University of Technology) Xingming Xiao (China University of Mining and Technology) Li Hao (China University of Mining and Technology)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.23 No.4
발행연도
2018.12
수록면
529 - 535 (7page)
DOI
10.4283/JMAG.2018.23.4.529

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초록· 키워드

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Aiming to obtain the influence mechanism of temperature on the torque transmission stability of magnetorheological fluid, firstly, a magnetorheological transmission device and its test-bed are established, and then, the thermal expansion, temperature pressure effect, heat volatilization, viscosity temperature characteristic, magnetic temperature characteristic and other related temperature characteristics were experimented systematically. The results indicate that the thermal expansion rate of 30 wt% magnetorheological fluid is 6 % and 18 % respectively at 120°C and 220°C, and the working space pressure is 13 kPa when the temperature rises from 32°C to 63°C. The thermal volatilization rate is still lower than 1 % at 200°C for 8 hours. The viscosity of the silicone oil based magnetorheological fluid decreases by 78 % when the temperature increases from 20°C to 240°C, and the saturation magnetization decreased by 6.2 %, 13 % and 23 % respectively at 150°C, 250°C and 350°C. Furthermore, the temperature field distribution experiment shows that the highest temperature region is at the outer diameter of the disk and expands slowly along the radial direction. Moreover, compared with rotational speed, temperature is the main factor affecting the torque fluctuation of magnetorheological fluid.

목차

1. Introduction
2. Establishment of MR Fluid Transmission Test-bed
3. Results and Discussions
4. Conclusions
References

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