G100034 構造物の損傷検出に関する基礎研究 : 損傷を持つ部材の振動特性([G10003]機械力学・計測制御部門一般セッション(3):モデリング(振動特性) )

概要

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It is important for structure and machine maintenance to detect the damage location and to evaluate the level of damage at that point. To understand the relation between natural frequency, in this paper, damping ratio and steel structural component with damage, dynamic characteristics of structure component was investigated by vibration test. Comparing between specimen with damage and without damage, natural frequency and damping ratio indicates change clearly. Damping ratio depends on the damage location, it becomes large value as the damage location approaches a lower position. And damping ratio of specimen with heavily damage indicates smaller to slight one.
一般社団法人日本機械学会の論文
2011-09-11