论文部分内容阅读
以有效幅宽1 600 mm的均匀轧辊为研究对象,采用有限元软件Fluent建立均匀轧辊内液压油的有限元模型,计算了轧辊转速、油压、气压对轴线方向油压分布的影响。用ANSYS/LS-DYNA对均匀轧辊仿真分析,研究不同油压、气压作用下织物纬向受力的变化。结果表明:均匀轧辊的转速和外加载荷的变化均会导致油腔内油压分布不均匀,但油压整体的变化量不大。均匀轧辊在一定油压和气压下,织物纬向受力均匀。当均匀轧辊气压不变油压升高时,织物中部受力变大。当均匀轧辊油压不变气压升高时,织物端部受力变大。研究得出各个轧点位置的受力情况,为精确控制织物轧余率提供了参考。
A uniform roll with an effective width of 1 600 mm was taken as the research object. The finite element model of the hydraulic oil in the uniform roll was established by finite element software Fluent. The influence of the rotational speed, hydraulic pressure and air pressure on the hydraulic distribution in the axial direction was calculated. Using ANSYS / LS-DYNA simulation analysis of uniform roll to study the changes of fabric latitudinal force under different hydraulic and pneumatic pressure. The results show that the variation of the speed and the applied load of the uniform roller will lead to the uneven distribution of oil pressure in the oil chamber, but the change of the oil pressure is not large. Uniform roll in a certain pressure and pressure, the fabric weft force uniform. When uniform pressure unchanged roller pressure increases, the central force in the fabric becomes larger. When the uniform pressure roller constant pressure, the fabric end of the larger force. The research draws the stress situation of each rolling point, which provides a reference for accurately controlling the rolling rate of the fabric.