Experimental Design and Research on Mechanical Properties of Conical Rubber Spring for Rail Transit
According to the stiffness and fatigue tests of conical rubber spring for rail transit,the structure and test standards of rubber spring were analyzed,and the vertical performance,transverse performance and fatigue test scheme of new rubber spring were designed.The effects of fatigue times on vertical stiffness,compression height and transverse stiffness were studied,and the effects of dif-ferent compression loads on the strain of different rubber layers were studied.The results showed that the experimental design met the test requirements.After 10 million fatigue tests,the vertical stiffness of the rubber spring decreased by 2.5％,compression height decreased by 2.56％,and transverse stiff-ness decreased by 6.7％;Under the vertical loading of 16 kN and 28.5 kN respectively,the strain val-ues of the first and second layers of rubber spring were basically consistent,which achieved the pur-pose of equal strain design.
rail transitrubber springmechanical propertyexperimental research
万方数据
维普
