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为减轻吊具自重、提高材料利用率和工作安全性,提出了基于ANSYS的2 500 t环轨式起重机吊具大铰支板优化设计方法。通过对大绞支板进行参数化建模和有限元分析,并以其体积最小化为优化目标、最大应力为约束条件,建立了优化数学模型。通过对其主要结构参数的灵敏度分析来确定设计变量,根据每一级优化的结果判断出更优设计域,修改设计空间并运行多级优化。结果表明:大铰支板的体积相对优化前减少了41.5﹪,最大应力仅提高0.82﹪,优化效果显著。
In order to reduce the weight of the spreader and improve the material utilization and work safety, an optimization design method of the large hinge for the spreader of 2 500 t ring crane based on ANSYS is proposed. Through the parametric modeling and finite element analysis of the large-skewed support, the optimization of the volume is minimized and the maximum stress is the constraint condition. The optimal mathematical model is established. Through the sensitivity analysis of its main structural parameters to determine the design variables, based on the results of each level of optimization to determine a better design domain, modify the design space and run multi-level optimization. The results show that the volume of the large hinge plate is reduced by 41.5% and the maximum stress is increased by only 0.82% before optimization, and the optimization effect is remarkable.