锻压技术

重型锻压机刚柔耦合系统动力学分析

英文标题：Dynamic analysis of rigid-flexible coupled system for heavy forging press

作者：范彬刘明陆新江黄明辉

分类号：TH113;TG316

出版年,卷(期):页码：2013,38(4):92-96

摘要：

为对锻压装备优化设计、制造、故障诊断提供理论依据，采用刚柔耦合动力学模型，以315t液压机实验平台为研究对象，研究其动力学性能。基于有限元模态分析，得出了预应力结构的工程意义。应用动力学分析软件ADAMS，提出了创建液压机刚柔耦合模型的研究方法，揭示了系统动力学特性与时变负载的关系。数值仿真结果表明:预应力结构能够有效地增加系统刚度，减小结构弹性变形；同时，平衡系统能够显著地降低偏载的不利影响。

In order to provide theory basis for optimization, manufacture and fault diagnosis of hydraulic forging press, the dynamic performance of the rigid-flexible coupled model was studied taking the 315 t hydraulic forging press as the investigation object. The advantage of pre-stressed structure was investigated based on modal analysis. The approach to establish the rigid-flexible model was proposed and the relationship between the dynamic performance and time-varying load was presented based on the ADAMS platform. The results show that with the pre-stressed structure,the stiffness increases and the elastic deformation reduces effectively, and the negative influence of the unbalanced load is eliminated effectively by the balancing cylinders.

基金项目：

国家自然科学基金资助项目(51005251)；国家重点基础研究发展计划(“973”计划)项目 (2011CB706802)；金属挤压/锻造装备技术国家重点实验室开放基金资助项目

范彬(1979-)，男，博士研究生，讲师

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