Slope Mode and Energy - Transfer Sensors for Nondestructive Evaluation

用于无损评估的斜率模式和能量传输传感器

• 批准号: 9360609
• 负责人: Steven Chen
• 金额: $ 6.49万
• 依托单位: PCB Piezotronics Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-15 至 1994-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9360609&HistoricalAwards=false
• 关键词: Slope; Mode; Energy; Transfer; Sensors

9360609 Chen Conventional structural evaluation methods often fail to provide accurate defect measurement of large civil infrastructures. This project brings in theoretical and experimental expertise in structural dynamics and experience in vibration sensors to study innovative slope mode and modal energy transfer sensors and measuring systems that could make structural behavior evaluation and health monitoring more feasible and accurate. The ultimate goal is to develop a series of slope accelerometers, which are not yet available commercially, based on a newly developed complex energy theory. The objective in phase one is to develop the accelerometers and calibration systems, to examine methods for modal energy measurements to perform the vibration signature analysis for medium size structures. The methodology and transducers considered in this project may have a significant impact in structural measurements and applications in transducer industries, bridge and large civil engineering structure inspections. This is an SBIR Phase I project. ***

传统的结构评估方法往往不能提供大型民用基础设施的准确缺陷测量。 该项目引入了结构动力学的理论和实验专业知识以及振动传感器的经验，以研究创新的斜坡模式和模态能量传递传感器和测量系统，使结构行为评估和健康监测更加可行和准确。 最终目标是根据新发展的复能量理论，开发一系列尚未商业化的斜坡加速度计。 第一阶段的目标是开发加速度计和校准系统，研究模态能量测量方法，以进行中等尺寸结构的振动特征分析。 该项目中考虑的方法和传感器可能对传感器行业、桥梁和大型土木工程结构检测中的结构测量和应用产生重大影响。 这是SBIR第一阶段项目。 ***