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为了避免单工况优化设计的局限性,对塔带机工作平台进行了多工况拓扑优化设计,得到其优化的结构构型,使工作平台在各种工况下既具有足够的刚度,又适当的减少了材料用量。以工作平台的整体结构柔度最小为优化目标,利用带权重的折衷规划法协调多个目标函数,构建多工况拓扑优化数学模型,利用HyperWorks/Optistruct求解优化模型,得到工作平台的拓扑型式。根据拓扑型式重构几何模型,对其进行静力分析,并与原结构模型静力分析的结果进行比较,对比的结果证明了文中优化设计的有效性。
In order to avoid the limitation of single-condition optimization design, the multi-working condition topology optimization design of the tower crane was carried out, and its optimized structure configuration was obtained. The working platform had sufficient rigidity under all conditions, Appropriate to reduce the amount of material. Taking the minimum overall structural flexibility of the working platform as the optimization objective, multiple objective functions are coordinated by the weighted compromise planning method to construct a mathematical model of multi-condition topology optimization. HyperWorks / Optistruct is used to solve the optimization model and the topology type of the working platform is obtained. The geometrical model is reconstructed according to the topological type, and then compared with the static analysis results of the original structural model. The comparison results prove the effectiveness of the optimal design.