材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
レインフロー法を用いた超小型実働ひずみ頻度計測装置の開発とその応用
村上 敬宜森田 卓弥嶺木 邦彦
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1997 年 46 巻 10 号 p. 1217-1221

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A very small strain history recorder based on the rainflow method has been developed and was named the Mini Rainflow Corder. The Mini Rainflow Corder is installed with IC chips containing the Rainflow algorithm software, an amplifier circuit, automatic bridge balance, a standard small size memory card in which the decomposed strain history data is stored and batteries. The data obtained under service loading can be easily retrieved by a personal or laptop computer from the memory card. The performance of the Mini Rainflow Corder was tested using the fatigue testing machine in laboratory, and also by the specially designed cantilever type cyclic loading testing machine. The accuracy of data acquisition, reliability at low and high temperatures, and shock resistance were also examined. The advantage of the developed recorder in application to rotating machine parts without a slip ring is emphasized. The application to car wheels was demonstrated.

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