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以某厂吊车梁为研究对象,针对转炉进行增容改造后其承载能力的问题,运用有限元技术对指定吊车梁的承载能力进行研究。首先对吊车梁整体CAE建模,再按照最危险的两种载荷工况,应用Optistruct软件对吊车梁的应力场进行了有限元仿真分析,分不考虑冲击系数和考虑冲击系数两种情况计算得到应力云图,最后对两种承载工况的仿真结果进行强度校核。结果表明:现有吊车梁能够满足转炉增容后的承载要求。目前,C-D跨吊车梁已经安全工作近十年,事实证明了结论的正确。
Taking a crane beam of a factory as the research object, aiming at the bearing capacity of the converter after its capacity expansion and transformation, the bearing capacity of the designated crane beam is studied by finite element method. Firstly, the overall CAE model of the crane beam is modeled, and then the stress field of the crane beam is simulated by using Optistruct software according to the two most dangerous load cases. The simulation results are given in two cases without considering the impact coefficient and considering the impact coefficient Stress cloud chart, and finally verify the strength of the simulation results of two bearing conditions. The results show that the existing crane girder can meet the bearing requirements of converter after capacity increase. Currently, C-D cross-beam crane has been working safely for nearly 10 years, the facts proved the conclusion is correct.