This article analyses the state and the distribution of the stress and the strain in the deformed region of steel tube,and then introduces the calculation equation of tube bending moment derived,and also how to apply it to the design of a tube bender.
分析了管材弯曲变形区的应力应变状态及其分布 ,导出了管材弯曲力矩的计算公式 ,并将之应用于弯管机设
According to different deformation rates in various parts of rail head after rail straightening,stress and bending moment were analyzed in the process of rail straightening by means of the mechanics of materials and elasticity.
针对钢轨矫直后轨头各部分展宽量不一样的现象 ,运用材料力学、弹塑性力学等知识对钢轨矫直过程的应力及弯曲力矩进行了分析 ,并对实验室实物钢轨 3点弯曲模拟试验结果进行了分析 ,初步掌握了钢轨矫直过程中轨头不均匀变形和表面变形的原因。
This paper analyses the cause of producing impression on the end of round steel sheared by arc knife-edge shears and puts forward the method to produce anti-bending moment by increasing the length of force arm based on lever principle for enhancing the end quality of sheared round stee
分析了弧剪刃剪切圆钢时轧件剪切端头产生压痕的原因，提出了运用杠杆原理，增加力臂长度，产生反弯曲力矩，以及提高剪切圆钢的端头质量的方法。