U.S.-Polish Research on Structural Health Monitoring Using Piezo-Generated Elastic Waves: Feasibility Study

美国-波兰利用压电产生的弹性波进行结构健康监测的研究：可行性研究

• 批准号: 9815060
• 负责人: Grzegorz Kawiecki
• 金额: $ 4.48万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9815060&HistoricalAwards=false
• 关键词: U.S.; Polish; Research; Structural; Health

INT-9815060KawieckiThis U.S.-Poland Cooperative Research award is for "Structural Health Monitoring Using Piezo-Generated Elastic Waves: Feasibility Study." The principal investigators are Grzegorz Kawiecki of the University of Tennessee for the U.S. side, and, for the Polish side, Dr. Adam Wysokowski of the Bridge, Concrete and Aggregate Research Center of the Road and Bridge Research Institute of Zmigrod-Weglewo, and Professor Jan Holnicki-Szulc of the Division of Computational Mechanics of the Institute of Fundamental Technological Research of the Polish Academy of Sciences, Warsaw. The objective is to show the feasibility of a new structural monitoring method by demonstrating its performance in realistic conditions. The system under considerations designed to monitor the structural health of civil engineering structures such as bridges, highway overpasses, dams, &c., in real time. Experiments with proof-of-concept specimens indicate that the proposed approach will make it possible not only to detect a damage but also to estimate its location and size. The system is based on measurements and analyses of anomalies in elastic wave propagation through the monitored structure. Elastic waves are generated and sensed by an array of transducers embedded in the structure or distributed over its surface. The signals transmitted among the elements of the transducer network are processed by a neural network-based system designed to detect anomalies associated with structural failures. The proposed project will follow three parallel paths: experimental, theoretical, and numerical.This research in civil engineering fulfills the program objectives of bringing together leading experts in the U.S. and Poland to combine complementary efforts and capabilities in areas of strong mutual interest and competence on the basis of equality, reciprocity, and mutuality of benefit.***

这项美国-波兰合作研究奖的主题是“使用压电弹性波进行结构健康监测：可行性研究”。美国方面的主要研究人员是田纳西大学的Grzegorz Kawiecki，波兰方面的主要研究人员是Zmigrod-Weglewo道路和桥梁研究所桥梁、混凝土和骨料研究中心的Adam Wysokowski博士，以及华沙波兰科学院基础技术研究所计算力学部的Jan Holnicki-Szulc教授。目的是通过展示其在现实条件下的性能来证明一种新的结构监测方法的可行性。该系统旨在监测土木工程结构的结构健康状况，如桥梁、高速公路立交桥、水坝等。，实时。概念验证样本的实验表明，该方法不仅可以检测损伤，还可以估计损伤的位置和大小。该系统是基于测量和分析弹性波在被监测结构中的传播异常。弹性波是由嵌入在结构中或分布在其表面的传感器阵列产生和感知的。在传感器网络的各个元件之间传输的信号由一个基于神经网络的系统处理，该系统旨在检测与结构故障相关的异常。拟议的项目将遵循三个平行的路径：实验，理论和数值。这项土木工程研究实现了将美国和波兰的顶尖专家聚集在一起的项目目标，在平等、互惠和互利的基础上，在共同感兴趣和能力强的领域结合互补的努力和能力