UPDATING LOAD-DISPLACEMENT RELATIONS OF SHOCK ABSORBERS COMPOSED OF RUBBER AND STEEL PIPES AND ITS APPLICATION TO DYNAMIC LOAD

【Author】

M.Minagawa;Y.Satoh;G.Goto;

【Abstract】

<正>Shock absorbers must have a high energy-absorbing capacity and impact resistance.The authors of this paper examined the basic characteristics of shock absorbers composed of rubber and steel pipes by static experiments.The authors then proposed a new type of shock absorber composed of steel pipes wrapped with rubber pipes,constructed a load-displacement model to estimate the load-displacement characteristic of the new type of shock absorber from the basic characteristics of rubber and steel pipes,and proved the validity of the model on the basis of experimental results.In this study,the authors conducted weight dropping impact tests of shock absorbers composed of rubber and steel pipes with various loading speed in order to investigate the rate dependency accurately.The experimental results showed that the dynamic effect on the load- displacement relationships of the absorbers are mainly caused by rate dependent characteristics of rubber material.By using the results,we proposed a method to evaluate dynamic load-displacement relationships by means of static load-displacement characteristics and confirmed the validity of the method through comparison with experimental results.

【Keywords】

shock absorber;;rubber pipe;;steel pipe;;energy absorbing capacity;;dynamic loading

References

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Springer Journals Database

Total: 4 articles

  • [1] M.Minagawa;T.Tohya;T.Takasaki;F.Nagashima, "Seismic behavior of base-isolated bridges with rubber or steel shock absorbers", Journal of Constructional Steel,
  • [2] M.Minagawa;T.Toya, "Development of shock absorber composed of rubber and steel pipes", Journal of Structural Mechanics and Earthquake Engineering,JSCE,
  • [3] M.Minagawa;M.Goto;A.Ishikuro, Dynamic experiments of shock absorbers composed of steel pipes and rubber pipes, Proc.6th Asia-Pacific Conference on Shock & Impact Loads on Ssructures,
  • [4] F.Nagashima;M.Minagawa;Y.Shimada;K.Terao;T.Satoh, "Analytical study on load-displacement properties of steel shock absorbers", Journal of Constructional Steel,

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