[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27, No. 6, pp.584-590

ISSN: 2508-5093 (Print) 2508-5107 (Online)

Print publication date 15 Dec 2018

Received 10 Oct 2018 Revised 02 Nov 2018 Accepted 14 Nov 2018

DOI: https://doi.org/10.7735/ksmte.2018.27.6.584

프레스 기계의 불평형 관성력 계산과 진동 해석

강주석^a^{, *} ; 황성준^b ; 박상필^b ; 김현주^b

An Analysis of Unbalanced Inertia Force and Vibration of Press Machine

Ju Seok Kang^a^{, *} ; Sung-Joon Hwang^b ; Sang-Phil Park^b ; Hyun-Joo Kim^b

aSchool of Railroad Engineering, Korea National University of Transportation, 157, Cheoldobangmulgwan-ro, Uiwang, Gyeonggi-do, 16106, Korea
bHyundai ROTEM company, 37, Cheoldobangmulgwan-ro, Uiwang, Gyeonggi-do, 16082, Korea

Correspondence to: ^*Tel.: +82-31-460-4550 Fax: +82-31-462-8203 E-mail address: kjuseok@ut.ac.kr (Ju Seok Kang).

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.

Keywords:

Unbalanced inertia force, Press machine, Transfer force, Vibration analysis

Acknowledgments

본 연구는 현대로템과 2018년 한국교통대학교 지원을 받아 수행하였음.

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