吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (3): 787-795.doi: 10.13229/j.cnki.jdxbgxb20170222

• Orginal Article • Previous Articles     Next Articles

Magneto-rheological vibration isolation for three-span bridge based on similarity theory

LI Rui1, ZHANG Lu-yang1, LIU Lin1, WU Yue-yuan1, CHEN Shi-wei2   

  1. 1.Engineering Research Center of Automotive Electronics and Embedded System, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
    2.Academe Math and Physical,Chongqing University of Science and Technology, Chongqing 401331, China
  • Received:2017-03-10 Online:2018-05-20 Published:2018-05-20

Abstract: The dimensionless similarity analysis method is adopted to calculate the dynamic similarity relationship between a three-span bridge and a small-scale test bench based on Magneto-rheological Bearing (MRB). On the basis of the relationship, the test bench model s designed. Dynamics of the two systems are calculated by Matlab respectively. Simulation results show that the acceleration, displacement of the prototype and similar models have good similarity. Further, according to the model parameters, a small-scale test bench is built, and the experimental results are in good agreement with the theoretical results. The acceleration peak and displacement peak of the bridge deck can be reduced by 42% and 36%, respectively. Therefore, the model experimental study based on similarity theory can reveal the vibration isolation performance of the controllable prototype.

Key words: mechanical design, bridge, dimensionless analysis, magneto-rheological elastomers bearing, vibration isolation

CLC Number: 

  • TH113
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