G1000-4-6 自動織機用ヘルドフレーム破損の原因究明とその対策(機械力学・計測制御部門一般講演(4):機構・構造,社会変革を技術で廻す機械工学)

概要

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In recent years, the automatic looms are operated with higher speed for effective mass productions. As a result, the heald frame is overloaded and may result in its failure. It is suggested as one of failure causes that due to high speed operation of the automatic looms the inherent frequency of heald frame agrees with its operating frequency, thus inducing a resonance vibration. In the present study, first, the inherent vibrations were simulated by the FEM analysis which was confirmed with accuracy, conducting the experimental modal analyses. Subsequently, the vibrations of the heald frame under practical use operations were measured, and thus the range of critical operation speed inducing large amplitude vibrations was clearly addressed, which well coincides with the inherent frequency of the heald frame. In addition, the countermeasures to increase the critical operation speed were carefully examined for structures and materials of the heald frame.
一般社団法人日本機械学会の論文
2010-09-04