Abstract
The smart properties of homogeneous electrorheological fluid (HERF) containing side—chain type liquid crystalline polymer were studied and an actual HERF damper with an adjustable viscosity was produced. A mechanical model of the HERF smart damper was established on the basis of experiment and theoretical analysis. Then a controlled equation of SDOF structure by HERF damper was derived and a semi-active control strategy based on optimal sliding displacement of damper was presented. The simulation results for a single story frame structure indicate that HERF, which may avoid some defects of common particles-suspended ER fluids, is an excellent smart material with better stability. Using the semi-active control strategy presented, HERF smart damper controlled could effectively reduce seismic responses of structures and keeps the control stable at all times.
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Qu Wei-lian: Born in 1946
Funded by the National Natural Science Foundation of China (No. 50038010 and 59832090)
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Wei-lian, Q., Jian-guo, G., Hui-ru, M. et al. Smart property of homogeneous electrorheological fluid and its application in reducing seismic responses of engineering structures. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 17, 70–74 (2002). https://doi.org/10.1007/BF02838545
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DOI: https://doi.org/10.1007/BF02838545