PV值对尼龙PA66滚动摩擦阻力的影响

发布时间：2018-03-02 19:00

本文选题：PA　切入点：PV值　出处：《机械设计》2016年07期 　论文类型：期刊论文

【摘要】：利用自行设计的滚动摩擦试验台,考察了PA66-HT200轮轨副在不同载荷、速度下的滚动摩擦阻力和滚动摩擦系数,分析了滚动摩擦机理。结果表明:随速度增加,滚动摩擦阻力和滚动摩擦系数均增大;随载荷增加,滚动摩擦阻力增大,滚动摩擦系数减小;随PV值的增加,滚动摩擦阻力几乎呈线性增长。理论分析显示这一现象与PA66的粘弹性密切相关。
[Abstract]:The rolling friction resistance and coefficient of rolling friction of PA66-HT200 wheel-rail pairs under different loads and speeds are investigated by using a self-designed rolling friction test rig. The mechanism of rolling friction is analyzed. The results show that the friction mechanism increases with the increase of velocity. Both rolling friction resistance and rolling friction coefficient increase; with the increase of load, rolling friction resistance increases and rolling friction coefficient decreases; with the increase of PV value, The theoretical analysis shows that this phenomenon is closely related to the viscoelasticity of PA66.
【作者单位】：徐州工程学院机电工程学院;
【基金】：国家自然科学基金资助项目(51275514) 清华大学摩擦学国家重点实验室开放基金资助项目(SKLTKF10B09)
【分类号】：TH117.1

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