超薄螺栓张力传感器和在线监测系统:应用于水电站机组

IF 2.9 3区 工程技术 Q2 ENGINEERING, CIVIL
Shaoquan Zhang, Yanke Tan, Hanbin Ge, Qilin Zhang
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引用次数: 0

摘要

螺栓连接的状况对结构安全有重大影响。然而,传统的螺栓拉力传感器由于体积庞大或稳定性不足,无法提供精确的测量结果。本研究利用晶体硅材料的压阻效应制造了一种超薄传感器。该传感器在压力和电压之间呈线性关系,在不同温度下具有极高的稳定性和卓越的抗腐蚀性,使其在高强度螺栓拉力监测应用中具有良好的适应性和用户友好性。此外,还开发了一个包含拟议传感器的监测系统。该系统可实时显示螺栓张力,并能评估传感器和结构状况,包括螺栓松动或部件故障。通过在溪洛渡水电站开展的一个项目,验证了拟议传感器和监测系统的功效。结果表明,传感器和在线监测系统有效地测量并熟练地传递和存储了螺栓拉力数据。此外,还在螺栓张力与水头、有功功率和重要点压力等基本机组参数之间建立了关联,有助于异常检测和预警。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An ultra-thin bolt tension sensor and online monitoring system: For application in hydropower plant unit

The condition of bolted connections significantly affects the structural safety. However, conventional bolt tension sensors fail to provide precise measurements due to their bulky size or inadequate stability. This study employs the piezoresistive effect of crystalline silicon material to fabricate an ultrathin sensor. The sensor exhibits a linear relationship between pressure and voltage, an exceptional stability at varying temperatures, and a superior resistance to corrosion, making it adaptable and user-friendly for applications of high-strength bolt tension monitoring. A monitoring system, incorporating the proposed sensor, has also been developed. This system provides real-time display of bolt tension and enables the assessment of sensor and structural conditions, including bolt loosening or component failure. The efficacy of the proposed sensor and monitoring system was validated through a project carried out at the Xiluodu Hydropower Plant. According to the results, the sensor and online monitoring system effectively gauged and proficiently conveyed and stored bolt tension data. In addition, correlations were created between bolt tensions and essential unit parameters, such as water head, active power, and pressures at vital points, facilitating anomaly detection and early warning.

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来源期刊
CiteScore
5.20
自引率
3.30%
发文量
734
期刊介绍: Frontiers of Structural and Civil Engineering is an international journal that publishes original research papers, review articles and case studies related to civil and structural engineering. Topics include but are not limited to the latest developments in building and bridge structures, geotechnical engineering, hydraulic engineering, coastal engineering, and transport engineering. Case studies that demonstrate the successful applications of cutting-edge research technologies are welcome. The journal also promotes and publishes interdisciplinary research and applications connecting civil engineering and other disciplines, such as bio-, info-, nano- and social sciences and technology. Manuscripts submitted for publication will be subject to a stringent peer review.
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