【摘要】 建立了浮法成型过程的数学模型 ,并用三维有限元方法 ,模拟了 5mm浮法玻璃成型过程 ,分析了拉边机在浮法玻璃成型中的作用以及拉制过程中玻璃的应力、位移、厚度分布。在玻璃拉制过程中 ,x方向应力主要集中在机头后区域 ;y方向应力主要集中在机头和玻璃带接触的地方 ;z方向应力沿玻璃板宽度方向分布 ,且范围较广 ;发现了实验中存在的速度“穿越”现象。模拟结果与实验结果的比较表明 ,建立的数学模型很好地模拟了浮法玻璃成型过程更多还原

【Abstract】 The mathematics model for the stretching process of float glass was established. Applying the three-dimensional model of finite-element method, the stretching process for float glass with thickness of 5 mm was calculated. The effect of rollers in stretching process, and the stress, displacement and thickness distribution of glass ribbon in stretching process were analyzed. Results show that during the stretching process of float glass, the stress in x direction focuses in the region behind the head of roller.In y direction it focuses in the contact spot between the head of roller and glass ribbon.In z direction the stress distributes along the width of the glass ribbon and has a wide range. The ”pull through” of velocity in experiment is found. The comparison of calculated data and the experimental data indicates that the established mathematics model well simulates the stretching process of float glass.更多还原