System Identification of Dynamically Sensitive Structures using Wireless Smart Sensor Networks

使用无线智能传感器网络对动态敏感结构进行系统识别

• 批准号: 341306-2012
• 负责人: Narasimhan, Sriram
• 金额: $ 1.53万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=527257
• 关键词: System; Identification; Dynamically; Sensitive; Structures

Large stocks of buildings and bridges in North America and elsewhere are nearing their design life, or have already surpassed it. Many are vulnerable to dynamic effects (e.g., earthquakes), as their risk was initially under-estimated. We need to assess their current state in order to make sound engineering decisions on whether to replace, rehabilitate or retrofit them, and to predict their remaining life. This is possible through system identification, which combines sensor measurements obtained from the structure and mathematical procedures to yield information regarding its current state.

北美和其他地区的大量建筑和桥梁已经接近或已经超过了设计寿命。许多国家容易受到动态影响(如地震)的影响，因为它们的风险最初被低估了。我们需要评估它们的现状，以便做出合理的工程决策，决定是否更换、修复或改造它们，并预测它们的剩余寿命。这可以通过系统识别来实现，系统识别将从结构中获得的传感器测量结果与数学程序相结合，以产生有关其当前状态的信息。