立式挤压铸造机合模机构多目标优化

发布时间：2018-02-20 21:24

本文关键词： 合模机构油缸推力油缸行程 ADAMS 参数化模型多目标优化　出处：《锻压技术》2017年12期 　论文类型：期刊论文

【摘要】：通过对立式挤压铸造机合模机构的工作特性进行分析,构建了合模机构的油缸推力及油缸行程的优化数学模型。运用ADAMS软件创建双曲肘合模机构的半参数化模型,同时以油缸最大推力和油缸最大行程为目标函数,提出了4种多目标优化方案,在满足机构约束条件的情况下,对合模机构进行优化。优化后,分别将4种方案的优化结果与原方案进行对比分析。结果显示,以线性组合加权法构造的统一目标函数得到的综合优化效果最好,油缸最大推力和油缸最大行程较初始设计都得到一定程度的降低,进一步改善了合模机构的性能。
[Abstract]:Based on the analysis of the working characteristics of the die closing mechanism of the opposite squeeze casting machine, the optimization mathematical model of the cylinder thrust and the cylinder stroke of the die closing mechanism is constructed. The semi-parametric model of the hyperbolic elbow clamping mechanism is created by using ADAMS software. At the same time, taking the maximum thrust of the cylinder and the maximum stroke of the cylinder as the objective function, four kinds of multi-objective optimization schemes are proposed. When the constraint conditions of the mechanism are satisfied, the optimization of the die mechanism is carried out. The optimization results of the four schemes are compared with those of the original scheme. The results show that the unified objective function constructed by the linear combination weighting method has the best comprehensive optimization effect. The maximum thrust of the cylinder and the maximum stroke of the cylinder are reduced to a certain extent compared with the initial design, which further improves the performance of the die closing mechanism.
【作者单位】：南京理工大学机械工程学院;
【基金】：江苏省前瞻性研究项目(BY2015004-08)
【分类号】：TG233.1

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