SGER: Sensors: Piezoelectric Paint Sensor for Real-Time Structural Health Monitoring

建议#0442076PI：云峰张雷大学结构健康监测通常会延长土木和机械系统的寿命并提高可靠性，特别是在老化结构方面。传感器构成了任何可行的结构健康监测系统的核心组件。为了克服与广泛使用的压电陶瓷材料相关的问题，本项目致力于开发一种基于聚合物的压电涂料传感器，该传感器可以部署在现有或新的结构上，用于实时监测结构损伤的开始和发展。这项研究包括对压电涂料的基本材料方面的研究，复杂几何结构部件上的传感器部署，裂纹检测策略，一种新的压电涂料原位制造技术，以及对压电涂料传感器的基本原理和局限性的详细了解。这项探索性研究将极大地推进传感器技术和智能材料的科学知识。拟议研究的成功完成将提供一种新的传感器技术，可能满足低成本、低功耗传感器对土木工程和机械系统的实时结构健康监测的需求。计划开展教育和外联活动，以各级各类学生为对象。将建立一个专门的项目网站，为感兴趣的研究人员、执业工程师和学生提供关键项目信息、互动培训活动。此外，拟议的工作将在利哈伊大学现有的外联方案中引入新的模块。

AbstractProposal # 0442076PI: Yunfeng ZhangLehigh UniversityStructural health monitoring generally leads to a prolonged life and enhanced reliability of civil and mechanical systems, particularly with regard to aging structures. Sensors comprise a core component in any viable structural health monitoring system. To overcome the problems associated with widely used piezoelectric ceramic materials, this project sets forth to develop a polymer-based piezoelectric paint sensor that can be deployed on existing or new structures for real-time monitoring the onset and progression of structural damages. The proposed research encompasses the study of the basic material aspects of piezoelectric paint, sensor deployment on structural components with complex geometry, crack detection strategies, a novel in situ fabrication technique for piezoelectric paint, as well as a detailed understanding of the underlying principles and limitations of piezoelectric paint sensors. This exploratory research will significantly advance the scientific knowledge in sensor technology and smart materials. The successful completion of the proposed research will offer a novel sensor technology potentially addressing the needs of low-cost, low-power-consumption sensors for real-time structural health monitoring of civil and mechanical systems. Education and outreach activities are planned to target a diverse group of students at all levels. A dedicated project website will be established to provide key project information, interactive training activities for interested researchers, practicing engineers and students. Additionally, the proposed work will bring new modules into existing outreach programs at Lehigh University.