2018•Journal of the korean society of manufacturing technology engineersOpen access
An Analysis of Unbalanced Inertia Force and Vibration of Press Machine
Ju Seok Kang, Sung-Joon Hwang, Sang-Phil Park, Hyun-Joo Kim
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Abstract
In this study, unbalanced inertia force is calculated through mathematical modeling of a press machine, and floor transfer force excited by the inertia force is analyzed. The method of calculating the unbalanced inertia force is verified by comparing the results of 1 degree-of-freedom forced vibration analysis with those of multi-body dynamics model. The unbalanced inertia force has maximum and minimum values in the return stroke and did not overlap with the processing impact force. The floor transfer force is almost equal to the unbalanced inertial force such that the unbalanced inertial force is transmitted to the transferring force of the support as it is. By changing the design position of the link, it is found that the transfer force can be reduced more effectively than the stiffness or damping of the support.