Abstract
Real-time monitoring in marine structures is vital to prevent maritime accidents. In this study, a highly-stretchable rope-like triboelectric nanogenerator (R-TENG) is proposed and investigated to monitor the mechanical loads of marine structures. The designed R-TENG is composed of outer latex tube and inner silicone rubber core. A series of experiments reveal that the voltage output of the R-TENG increases linearly with the strain in the elastic region of 140%. In addition, the R-TENG can also respond well to other mechanical stimuli such as bending and pressing. More importantly, the electrical output of the R-TENG can remain almost constant even under 93% humidity atmosphere. Finally, the R-TENG has been successfully demonstrated in monitoring the typical mechanical loads in marine structures, including stretching, colliding and bending. Therefore, this R-TENG can be utilized as an alternative sensor to realize the self-powered monitoring in marine structures.
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