J044031 SI-F法を用いた配管構造の減肉損傷モニタリングにおけるセンサ設置箇所の最適化検討([J04403]知的材料・構造システム(3))

概要

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This research is about the influence of the sensor location to the diagnostic accuracy via the SI-F method. SI-F method is the statistical damage diagnosis method which diagnoses existence of the damage by detecting the change of correlation between sensors. When the damage diagnosis is conducted by the nondestructive testing, the inspection part can be freely changed according to the situation. Therefore, the inspection equipment can be set up to vicinity of the damage. However, when damage is diagnosed by an online monitor, the location of the sensor is fixed. Therefore, it is necessary to optimize the arrangement of the sensor to evaluate the entire structure. In the present study, from the vibration analysis using FEM analysis, as an examination to optimize the sensor arrangement, an analytical examination about effect of the distance from the damage to the sensitivity of the SI-F method for thinning damage of pipe wall was conducted.
一般社団法人日本機械学会の論文
2011-09-11