论文部分内容阅读
本文为使用有限元法对摩擦轮进行计算的一个小结。对照表明,所算出的摩擦轮径向挠度曲线图比德国O.Popowicz的著名计算更接近于实际。应力分布规律除反映出相应弯矩的影响外,还形象地反映出摩擦衬垫的作用位置。从计算结果来看,摩擦轮上的弯矩和应力水平,远较单绳提升机卷筒的数值为低。这是由于多绳提升机每根钢丝绳的拉力较小;摩擦衬垫底部较宽使得钢丝绳对摩擦轮的均布载荷变小,并且是间断作用等因素造成的。文章最后认为:摩擦轮的弯矩和应力水平不高,强度问题不是主要矛盾,应开展关于摩擦轮的稳定性和焊缝残余应力的研究。
This article is a summary of the friction wheel using the finite element method. The comparison shows that the calculated radial deflection curve of the friction wheel is closer to actual than the well-known calculation of O.opopicz in Germany. In addition to the law of stress distribution reflects the impact of the corresponding moment, but also vividly reflect the role of the friction pad position. From the calculation results, the bending moment and the stress level on the friction wheel are much lower than those of the single rope hoist. This is due to the smaller tension of each rope in a multi-rope hoist; the wider bottom of the friction liner reduces the uniform load on the friction wheel by the wire rope and is caused by intermittent effects. The article concludes that: the bending moment and stress level of the friction wheel are not high, the strength problem is not the main contradiction, and the research on the stability of the friction wheel and the residual stress of the weld should be carried out.