A self-powered triboelectric nanogenerator sensor for multiple bolts loosening detecting under impact loading

IF 1.9 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electrostatics Pub Date : 2025-05-20 DOI:10.1016/j.elstat.2025.104093

Yinhu Xi , Jinhui Deng , Chenjia Wu , Baokun Li , Yanbiao Li , Haishun Deng

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引用次数: 0

Abstract

Bolted connections are widely used under impact loading conditions, and the detection of the bolts loosening is important. Although previous studies have utilized triboelectric nanogenerators (TENGs) for detecting bolt loosening, they have predominantly concentrated on the state of individual bolts. In this work, a self-powered Polyimide/Copper TENG (PC-TENG) sensor was proposed for the real-time monitoring of multiple bolts under impact loading. By incorporating LED indicators into each PC-TENG and measuring the output voltage, it is a simple and straight way to detect the presence of loose bolts and to identify their specific locations. Moreover, the possibility by only measuring the combined output voltages of TENG sensors was studied, and it was found that the TENG sensors with different output voltages were suitable for the multiple bolts detection, while the ones with similar output voltages cannot be employed for the multiple cases. The inconsistence of TENGs output results was often seen as a disadvantage, but in this work, we innovatively leveraged this behavior to enable multiple bolts loosening detection. By creatively utilizing distinct voltage outputs and integrated LED indicators, this PC-TENG system achieves simple, real-time identification of loose bolts in multi-bolt setups, offering a novel strategy for structural health monitoring in practical applications.

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一种用于冲击载荷下多螺栓松动检测的自供电摩擦纳米发电机传感器

螺栓连接在冲击载荷条件下被广泛应用，螺栓松动的检测非常重要。虽然以前的研究已经利用摩擦电纳米发电机（TENGs）来检测螺栓松动，但它们主要集中在单个螺栓的状态上。本文提出了一种自供电的聚酰亚胺/铜TENG （PC-TENG）传感器，用于对多个螺栓在冲击载荷下的实时监测。通过将LED指示灯整合到每个PC-TENG中并测量输出电压，这是一种简单而直接的方法来检测螺栓松动的存在并确定其具体位置。此外，研究了仅测量TENG传感器组合输出电压的可能性，发现不同输出电压的TENG传感器适用于多螺栓检测，而输出电压相似的TENG传感器不适用于多情况。TENGs输出结果的不一致性通常被视为一个缺点，但在这项工作中，我们创新地利用了这种行为来实现多个螺栓松动检测。通过创造性地利用不同的电压输出和集成LED指示灯，PC-TENG系统可以简单、实时地识别多螺栓装置中的松动螺栓，为实际应用中的结构健康监测提供了一种新的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electrostatics 工程技术-工程：电子与电气

CiteScore

4.00

自引率

11.10%

发文量

审稿时长

49 days

期刊介绍： The Journal of Electrostatics is the leading forum for publishing research findings that advance knowledge in the field of electrostatics. We invite submissions in the following areas: Electrostatic charge separation processes. Electrostatic manipulation of particles, droplets, and biological cells. Electrostatically driven or controlled fluid flow. Electrostatics in the gas phase.