| 李志军,沈照伟,曲月霞,李广伟.非冻结合成模型冰的动摩擦系数[J].水利学报,2001,32(9):0051-0055 |
| 非冻结合成模型冰的动摩擦系数 |
| The dynamic friction coefficient of materials for ice modeling |
| |
| DOI： |
| 中文关键词: 合成模型冰 粘聚力 内摩擦角 摩擦系数 实验 |
| 英文关键词: ice modeling angle of internal friction friction coefficient experimental study |
| 基金项目: |
|
| 摘要点击次数: 2679 |
| 全文下载次数: 90 |
| 中文摘要: |
| 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4～14Pa，内摩擦角为24～26°。平均动摩擦系数为0.49，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0.57；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。 |
| 英文摘要: |
| 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 plasticare 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. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |