ワッシャー型センサーによるボルト締結体における力学量の検出

抄録

Reduction of clamping force of bolted joints causes a self-loosening and fatigue failure. Hence it is very important to measure not only mechanical force but also bending moment that tightened bolts receiving for prevention of self-loosening and fatigue fracture. We have developed a washer sensor that enables detection of clamping force and the bending moment of the bolted joints in service. It was seen that the developed washer sensor can measure not only the mechanical force and bending moment that bolts are receiving but also the direction and magnitudes of the external force that the bolted joints receiving.