ねじりと衝撃引張りの複合荷重を受ける揚重機用リンクチェーンの三次元弾塑性有限要素解析

概要

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Three-dimensional elastoplastic analysis is carried out using the finite-element method (DYNA3D) in order to determine know the stress distribution and to optimize the shape of link chains subjected to combined loads of torsion and impact tension. The stress is evaluated using von Mises' criterion. The effects of various dimensions and twisted contact angle of the link chains on the stress distributions are shown. Experiments were performed on deformation and strain of link chains subjected to the combined loads. Fairly good agreement is seen between the numerical and the experimental results. As a result, it is clarified that von Mises' equivalent stress of twisted link chains can be improved by optimizing the chain width. von Mises' equivalent stress of chains subjected to the combined loads when the contact torsional angle θ is between 22. 5 and 30 degrees, which is about 13% greater than that when θ is zero degrees.
一般社団法人日本機械学会の論文
1995-11-25