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台车是是在冷热循环的工况下连续工作的,通过去某烧结厂现场测试,知道稳定工况下台车体在上轨道14号风箱位置开始升温一直到机尾卸料处,其余的时候处在降温阶段;在上轨道14号风箱左右受机械载荷的影响大,在机尾卸料处受机械载荷和温度载荷的联合作用,在下轨道受温度载荷的影响,所以为了弄清烧结机台车体在不同阶段不同边界条件下的应力水平以及变形情况,通过运用有限元软件Ansys分别对上面三种工况进行强度刚度分析。结果表明机械应力大于热应力,在变形方面,热变形比机械变形的影响要大。以许用应力和刚度作为约束条件,台车体重量为目标函数用最优化理论和方法进行结构优化设计;来提高其承载能力或减少重量,提高生产率,降低制造成本。
Trolley is in the hot and cold cycle of continuous working conditions, by going to a sinter site test, know the steady conditions of the next car body in the track on the 14th bellows began to heat up until the tail discharge, the rest of the time In the cooling stage; in the track on the 14th bellows affected by the mechanical load of large, at the tail of the discharge by the mechanical load and temperature load of the combined effect of the next track by the temperature load, so in order to clarify the sintering machine trolley The stress level and the deformation of the body under different boundary conditions are analyzed by the finite element software Ansys. The results show that the mechanical stress is greater than the thermal stress, in the deformation, thermal deformation than the mechanical deformation of the larger. With the allowable stress and stiffness as constraints, the body weight of the trolley is the objective function, which is optimized by the optimization theory and method to improve the carrying capacity or reduce the weight, improve the productivity and reduce the manufacturing cost.