Transactions of Materials and Heat Treatment

Title：Rigid-flexible coupling dynamics analysis of eight-links mechanical press based on ANSYS Workbench

Authors： Yu Tao Zhang Yujiao Wang Yueliang Liu Xiujie Zhang Xianghua

Unit： Shandong University of Science and Technology

KeyWords： eight-links mechanical press rigid body kinematic analysis rigid-flexible coupling dynamic analysis transmission mechanism ANSYS Workbench

ClassificationCode：TH132

year,vol(issue):pagenumber：2017,42(4):143-148

Abstract：

Considering the influence of the flexible body part of press on mechanical motion, for the transmission mechanism of the eight-links mechanical press, its parametric entity modeling was established by Pro/E software. Then, based on the rigid body kinematic simulation of the transmission mechanism of eight-links mechanical press, a rigid-flexible coupling dynamics analysis of the transmission mechanism was carried out by Rigid Dynamic module and Transient Structural module in ANSYS Workbench software, and the motion characteristic curves of the press transmission mechanism and the equivalent stress curve and distribution were obtained. The results show that the maximum equivalent stress of main link is higher than the material allowable stress, after optimization of the lower shaft hole size to 69 mm, the maximum equivalent stress is significantly reduced to fit for the main link strength requirements. Therefore, the rigid body kinematics and rigid-flexible coupling dynamics simulation analysis can be realized in the same software platform, and the rigid-flexible coupling model can better reflect the true movement of mechanism by comparing two models.

Funds：

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 E-mail：yutaosang@163.com 通讯作者：张玉娇（1991-），女，硕士研究生 E-mail：zyjjiang@126.com

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