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用作汽车轮胎增强材料的钢丝帘线是由盘条拉成细丝捻制而成。为满足轮胎的刚度需求,人们开发了不同类型的钢丝帘线。钢丝帘线的结构稳定性是其质量评估的重要因素之一。一般在钢丝帘线捻制工序后评估钢丝帘线的平直性和残余扭转。校直辊是利用周期弯曲变形来改善钢丝帘线的平直性和残余应力的一种装置。校直辊装置的工艺设计大多数情况下是基于工程师经验的反复试验,需要大量的时间和成本。因此需要一个有效工具来节省校直辊工艺设计的时间和成本。有限元分析模拟方法是校直辊工艺设计的一种有效选择。本工作提出通过有限元分析校直辊工艺数值模拟单层钢丝帘线质量的评估方法,以3×0.30单层钢丝帘线作为试验样品。简易模拟方法如
Steel cord used as reinforcing material for automobile tires is made by twisting the wire rod into filaments. To meet the stiffness requirements of tires, different types of steel cords have been developed. The structural stability of steel cord is one of the important factors in its quality assessment. The flatness and residual torsion of the steel cords are generally evaluated after the steel cord twisting process. Straightening roller is the use of periodic bending deformation to improve the straightness of steel cords and residual stress of a device. The process design of a straightening roller assembly is, in most cases, a trial and error based on the experience of the engineer, requiring considerable time and cost. There is therefore a need for an effective tool to save the time and cost of straightening roll process design. Finite element analysis and simulation method is an effective choice of straightening roller technology design. This work proposed to evaluate the quality of the single-layer steel cord through the finite element analysis of the straightening roller process, with 3 × 0.30 single-layer steel cord as the test sample. Simple simulation methods such as