S112043 ISO 16047に準拠した新しいねじ締付け試験機の開発 : 水晶圧電式センサシステムの特性評価([S11204]機械要素の設計・製造・応用技術(4))

概要

論文の詳細を見る
It is one of the most important issues for structural safety to control the clamp force of bolted joints. However, the accuracy of the testing apparatus commercially available to evaluate the tightening characteristics for wide variety of fasteners is not sufficient. This study aims to develop a new testing machine for torque/clamp force testing, which will meet the requirement specified in ISO 16047. In this study, the root cause of measuring error of the piezoelectric sensor system is analyzed both experimentally and analytically. As a result, it is found that both the torque acting on the preloading bolts and shear stress distribution on the sensor surface may affect sensitivity of piezoelectric shear force sensors as well as the inherent characteristics of the sensors, and the configuration of the sensor system is proposed to reduce the measuring error.
一般社団法人日本機械学会の論文
2011-09-11