锻压技术

立式挤压铸造机合模机构多目标优化

英文标题：Multi-objective optimization on clamping mechanism of vertical squeeze casting machine

作者：徐洋洋丁武学彭斌彬孙宇

单位：南京理工大学

分类号：TG233.1;TP391.9

出版年,卷(期):页码：2017,42(12):81-86

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。

The optimized mathematical models of cylinder thrust and cylinder stroke were constructed by analyzing the work characteristics of clamping mechanism in the vertical squeeze casting machine. Then, the half of parametric model of double-toggle clamping mechanism was established by software ADAMS, and four multi-objective optimization schemes were mentioned by selecting the maximum cylinder thrust and the maximum cylinder stroke as the objective function. Furthermore, the clamping mechanism was optimized under the condition of meeting institutional constraints, and the optimal results of four schemes were compared with the initial scheme respectively. The result shows that the comprehensive optimization effect of unified objective function constructed by linear combination weighting method is the best, which makes the maximum cylinder thrust and the maximum cylinder stroke reduce to a certain extent, and the performance of clamping mechanism is improved further.

基金项目：

江苏省前瞻性研究项目（BY2015004-08）

作者简介：徐洋洋（1992-），男，硕士研究生 E-mail：1209403843@qq.com 通讯作者：丁武学（1966-），男，硕士，副教授 E-mail：wuxuexie@mail.njust.edu.cn

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