引張りと曲げ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と強度評価

概要

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Link chains used in chain hoists are usually subjected to combined loads of tensile loads and bending moments when they pass through sheaves. Until now, no investigations have been done on the stress distribution of chains subjected to combined loads. In this paper, the stress distribution of chains subjected to combined loads is analyzed using the elastoplastic finite element method. Using the stress distribution in the chains, the strength of the chains is evaluated by von Mises' criterion. The effects of the contact angle of each link chain are shown using von Mises' stress. For verification, photoelastic experiments and measurement of strain were performed. It is found that the strength of link chains subjected to combined loads is about 17% less than that of link chains subjected to tensile loads. In addition, it is clarified that the strength of link chains can be improved by optimizing the link pitch and the link width.
一般社団法人日本機械学会の論文
1994-10-25