非冻结合成模型冰的动摩擦系数

The dynamic friction coefficient of materials for ice modeling

本文介绍非冻结 (DUT 1 )合成模型冰的主要性能和实验动摩擦系数 .通过实验测试了DUT 1合成模型冰浸水后与浸水模型冰断面之间 ,同铝板、刷漆木板、有机玻璃板表面之间的滑动摩擦力 .获得浸水模型冰之间的内聚力为 4～1 4Pa,内摩擦角为 2 4～ 2 6°.平均动摩擦系数为 0 4 9,它与天然海冰、河冰的动摩擦系数范围相同 ,也与几种合成模型冰的一致 .还得到DTU 1模型冰与铝板的平均摩擦系数是 0 37;与刷漆木板是 0 5 7;与有机玻璃板是 0 38,所有的动摩擦系数都随正压应力、运动速度的增加而降低 .

The properties of DUT\|1 synthetic model ice(not formed by freezing) for hydraulic model test are introduced.The friction between the ice blocks in water with the same material,aluminum,painted wood and plastic are experimentally studied.The mean dynamic friction coefficient between the same material is 0\^49,it is about the same as the natural ices and some model ices. In addition the measured dynamic friction coefficients between the model ice and aluminum, painted wood and plastic are 0 37、0 57 and 0 38.The friction coefficient decreases with the increase of normal load and moving speed.