衝突振動をするハンマ(第一報) : 衝撃特性と最適条件

概要

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This report deals with the properties of impact activity and the optimum impact conditions on a hammering machine with a spring suspended hammer. The conditions are defined by considerations of impact motion of the hammer. In the study, impact activity of the machine are evaluated by impulse per one impact or the total amount of impulse per second. It has ' been considered that the frequency condition of the maximum impulse agrees at resonance, z=1,but in practice there is the frequency ratio z in l<z<2. Definition of Op and Om points, developed as the optimum conditions in one shot, are as follows : The former is the condition which minimizes the impulse change over a practical useful setting gap range, and the latter gives the maximum impulse in the gap range. The Op point is fitted for a large amount of work-ing because the impulse change is small on the wide gap change and various work thickness. On the other hand, Om Point is applied to the opposite purposes for the Op point. Optimum conditions on the total amount of impulse per second are also developed in the same manner and called on Op' and Om' Points.
公益社団法人精密工学会の論文
1983-06-05