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Exact Modeling of Power and Energy Transduction for Optimum Design of Structurally-Integrated Thin-Film Active Sensors

功率和能量转换的精确建模，用于结构集成薄膜有源传感器的优化设计

基本信息

批准号：
0925466
负责人：
Victor Giurgiutiu
金额：
$ 24万
依托单位：
University South Carolina Research Foundation
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2009
资助国家：
美国
起止时间：
2009-09-01 至 2014-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0925466&HistoricalAwards=false
关键词：
Exact Modeling Power Energy Transduction

项目摘要

The research objective of this project is to develop fundamental understanding and predictive modeling of power and energy transduction in structurally integrated thin-film active sensors for autonomous structural health monitoring (SHM). The educational objective is to address active sensors education and outreach with involvement of underrepresented minorities.The adequate modeling of power and energy transduction in structurally integrated thin-film sensors and actuators is of prime importance in the design of energy-efficient autonomous systems because it affects battery life and energy harvesting needs. The approach will consist of fast and efficient analytical modeling, numerical simulation, and experimental validation. The focus will be on exact analytical modeling of the shear-lag interaction between a thin-film active sensor and the multi-modal ultrasonic waves present in the structure. The methodology will be first developed for isotropic metallic plates and then extended to generic multi-layer anisotropic systems (e.g., adhesive bonding, composites, or hybrid structures).The outcome will be an advanced methodology for modeling of power and energy transduction in structurally integrated thin-film active sensors. This methodology will allow rapid and accurate exploration of the design space to achieve optimum transduction efficiency for long-term operation of autonomous SHM systems and other autonomous active sensing devices.

本项目的研究目标是发展基本的理解和预测建模的功率和能量转换的结构集成的薄膜有源传感器的自主结构健康监测（SHM）。教育的目标是解决积极的传感器教育和推广与代表性不足的minorities.The结构集成的薄膜传感器和执行器的功率和能量转换的充分建模是在节能自主系统的设计中的首要重要性，因为它会影响电池寿命和能量收集的需求。该方法将包括快速有效的分析建模，数值模拟和实验验证。重点将是精确的分析建模的薄膜有源传感器和多模态超声波之间的剪切滞后相互作用的结构。该方法将首先针对各向同性金属板开发，然后扩展到通用的多层各向异性系统（例如，结果将是一种先进的方法，用于结构集成薄膜有源传感器中的功率和能量转换建模。这种方法将允许快速准确地探索设计空间，以实现自主SHM系统和其他自主有源传感设备的长期运行的最佳转换效率。