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http://dx.doi.org/10.5050/KSNVN.2007.17.5.415

Dynamic Balancing in a Link Motion Punch Press  

Suh, Jin-Sung (Department of Mechanical Engineering, Korea Polytechnic Univ.)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.17, no.5, 2007 , pp. 415-426 More about this Journal
Abstract
In a link motion punch press, numerous links are interconnected and each link executes a constrained motion at high speed. As a consequence, dynamic unbalance force and moment are transmitted to the main frame of the press, which results in unwanted vibration. This degrades productivity and precise stamping work of the press. This paper presents an effective method for reducing dynamic unbalance in a link motion punch press based upon kinematic and dynamic analyses. Firstly, the kinematic analysis is carried out in order to understand the fundamental characteristics of the link motion mechanism. Then design variable approach is presented in order to automate the model setup for the mechanism whenever design changes are necessary. To obtain the inertia properties of the links such as mass, mass moment of inertia, and the center of mass, 3-dimensional CAD software was utilized. Dynamic simulations were carried out for various combinations of design changes on some links having significant influences on kinematic and dynamic behavior of the mechanism.
Keywords
Dynamic Balancing; Link Motion Mechanism; Constraint Joint; Constraint Equation; spm(Strokes per minute);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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