The roll separating force, rolling torque and contact pressure along the surface of the rolls are also evaluated by means of the finite element method.
轧制分离力、轧制力矩以及沿轧辊表面的接触压力也通过有限元法进行评估。
In the calculations of roll torque of ablation lag, a rapid method for calculating combined influence of ablation injection and roughness on skin friction coefficient is mainly described.
在烧蚀滞后滚转力矩的计算方法中,本文主要介绍滞后引射率和粗糙度对壁面摩擦系数联合影响的一种快速计算方法。
The formulae of roll force and torque are verified by ring rolling experiment.
根据环件辗扩实验结果,对文中的辗扩力和力矩计算公式进行了验证。
The results also predict that the roll force and the roll torque increase with the increase of the feed velocity.
随着芯辊进给速度的增大,轧制力和轧制力矩也相应增大,因此对轧环机力能参数的要求也提高;
Numerical examples show that the model meets the requirement of zero torque and rigidity for vertical roll.
算例表明,该模型满足立辗转矩为零和刚性化的要求。
By simultaneously sampling roll-bar speed and estimating tension by electric current-torque method the forward slip model for continuous shape rolling can be identified on-line.
在正常连轧生产条件下,同时在线采集轧辊与轧件速度并采用电流—力矩法估计机架问张力值,可以在线地识别前滑模型。
Owing to improvement of rolling mill practice. , the vertical rolling mill main drive system of some plant must endure more roll torque.
由于轧制工艺的改进,某厂立辊轧机主传动系统需要承受更大的轧制力矩。
Roll torque is produced due to the effects of circumferential lag of ablation for a spinning blunt-nosed cone at angles of attack.
有迎角的旋转钝锥由于周向烧蚀滞后将产生滚转力矩。
The breakdown of transmission shaft in the main drive system is due to too high roll torque. Overpower protection mode of motor current does not reflect the true dynamic character of roll torque.
轧制力矩过大是轧机主传动系统传动轴断裂的主要原因,传统的电机电流过载保护方式不能真实反映轧机主传动系统扭矩的动力学特性。
The breakdown of transmission shaft in the main drive system is due to too high roll torque. Overpower protection mode of motor current does not reflect the true dynamic character of roll torque.
轧制力矩过大是轧机主传动系统传动轴断裂的主要原因,传统的电机电流过载保护方式不能真实反映轧机主传动系统扭矩的动力学特性。
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