懸垂鎖の振動に関する一実験

概要

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In this paper, an experiment on the oscillation of chain suspended at both extremities is informed. The one end is fixed, while the other is forced to displace periodically by a crankmechanism driven by a variable speed alternating current motor and the modes of the oscillation are observed from the photograph taken by cameras set up several meters apart. The followings are concluded : (1) The natural frequencies of chain diminish rapidly as the statical deflection of suspended chain becomes large. (2) In all cases, the natural frequencies of chain increase in almost proportional to the orders. (3) The curves representing the modes of the vibration become sharper than the sinecurves of the modes of string. (4) The experimental results of the chain vertically hung from the one end only agree with the well known theory.
一般社団法人日本機械学会の論文
1955-03-25