锻压技术

基于ANSYS Workbench的八连杆压力机动力学分析及优化设计

英文标题：Dynamics analysis and optimization design of eight-links mechanical press based on ANSYS Workbench

作者：于涛王月亮范欣贾超伟刘广鹏郭焕鹏

单位：山东科技大学

分类号：TH132

出版年,卷(期):页码：2016,41(8):99-103

摘要：

以八连杆压力机的传动机构为研究对象，使用Solidworks软件对八连杆传动机构进行参数化实体建模，然后导入ANSYS Workbench软件中完成机构的动力学分析，得到机构中滑块的运动特性曲线及各构件所受载荷的情况；当压力机达到公称压力位置时，以机构下连杆为研究对象，首先对其进行静力学分析，结果显示为下连杆最大等效应力低于材料许用应力；进一步对下连杆添加循环载荷进行疲劳分析，得到其疲劳安全系数为0.845；以最大等效应力低于材料许用应力、疲劳安全系数高于1、质量最轻化为优化目标，对下连杆进行尺寸优化，最终在满足强度的基础上，疲劳安全系数达到1.154，质量减轻4%，达到了轻量化、低应力、高安全性的优化目的。

For the drive mechanism of the eight-links mechanical press, its parametric entity modeling was established by Solidwords. Then, the dynamics analysis of mechanism was finished by the ANSYS Workbench software, and the motion characteristic curve of the slider in institutions and the load of the component were obtained. Furthermore, the lower link was selected as the research object when the press reached nominal position, and the results from the static analysis show that the maximum stress of lower link were lower than the material allowable stress. The result of fatigue safety factor turned out to be 0.845 after further cyclic loading being added to lower link to conduct fatigue analysis. Based on the optimization goals of the maximum stress lower than the material allowable stress, fatigue safety factor higher than 1 and the lightest mass, the size of the lower link was optimized. Finally, on premise of meeting the strength requirements, the optimization goal of lightweight, low stress and high security were realized with the fatigue safety coefficient 1.15 and mass reduced by 4%.

基金项目：

中国煤炭工业协会科技指导性计划项目(MTKJ 2012-344)

于涛（1972-），男，博士，副教授王月亮（1990-），男，硕士研究生

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