FRICTIONAL CHARACTERISTICS OF TEFLON STEEL INTERFACES UNDER DYNAMIC CONDITIONS
FRICTIONAL CHARACTERISTICS OF TEFLON STEEL INTERFACES UNDER DYNAMIC CONDITIONS
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DOI：
10.1002/eqe.4290150607
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发表时间：
1987-08-01
影响因子：
4.5
通讯作者：
HARRIS, HG
中科院分区：
文献类型：
--
作者：
CONSTANTINOU, MC;CACCESE, J;HARRIS, HG
描述了一种用于评估动态条件下聚四氟乙烯-钢界面摩擦特性的实验研究。在抛光至表面粗糙度小于0.05 μm CLA的不锈钢上对未填充的Teflon滑动件进行了试验。支承压力为1.38、3.45和6.9 N/mm ~ 2，滑动频率为0.5和1 Hz，小型振动台施加的激励加速度为0.05 ~ 0.5g。有人发现，摩擦下降，减少在激励的加速度和下降，增加轴承压力。据观察，聚四氟乙烯-钢界面有趋势，不断滑动的加速度值无关。这在基础隔离应用中非常重要，因为它可以防止结构的高频输入。
An experimental study to assess the frictional characteristics of Teflon–steel interfaces under dynamic conditions is described. Tests were conducted on unfilled Teflon sliding on stainless steel polished to a surface roughness of less than 0.05 μm CLA. The bearing pressure was 1.38, 3.45 and 6.9 N/mm2, the frequency of sliding was 0.5 and 1 Hz and the acceleration of excitation, imposed by a small shaking table, was between 0.05 and 0.5g. It was found that friction drops with decreases in the acceleration of excitation and drops with increases in the bearing pressure. It was observed that Teflon–steel interfaces have the tendency to slide continuously regardless of the value of acceleration. This is very important in base isolation applications because it prevents high frequency input to the structure.