CAREER: Next-Generation High-Sensitivity Damage Detection and Sensing Based on Enhancing Nonlinear Dynamics and Phase Space Pattern Recognition

大多数基于振动的损伤检测方法都是针对线性振动设计的，而很少有方法适用于非线性系统。当前的许多非线性方法都有重要的局限性，例如难以处理高维系统。这个综合研究和教育计划通过使用一种完全不同的方法消除了这些限制。主要研究目标是开发鲁棒性和高灵敏度的基于非线性振动的技术，用于感知和检测高维系统（如复杂的流体-结构系统）中多个同时损伤的位置和水平。主要的教育目标是开发一个程序，重点是加强工程直觉，强调非线性动力学。教育方面的努力将研究与广泛的教育和推广活动相结合，包括：(a)将非线性动力学整合到工程本科课程中，(b)开发高级本科和研究生非线性动力学课程，(c)为K-12学生实施推广活动。这项综合研究和教育计划将为高维非线性复杂系统的损伤检测提供一种新的综合方法。这项研究将对结构动力学、流固相互作用和传感领域做出重大贡献，并具有直接影响工业的潜力，因为它解决了重要的实际工程问题，例如航空航天、民用和传感技术。此外，这项研究对整个社会都有潜在的好处，并通过广泛传播来加强科学理解。

CAREER: Next-Generation High-Sensitivity Damage Detection and Sensing Based on Enhancing Nonlinear Dynamics and Phase Space Pattern Recognition Most vibration-based damage detection methods are designed for linear vibrations while far fewer apply to nonlinear systems. Many of the current nonlinear methods have important limitations, e.g. difficulty tackling high-dimensional systems. This integrated research and educational program eliminates several of these limitations by using a radically different approach. The main research goal is to develop robust and highly sensitive nonlinear vibration-based techniques for sensing and detecting the location and level of multiple simultaneous damages in high-dimensional systems such as complex fluid-structural systems. The main educational goal is the development of a program focused on enhancing engineering intuition with emphasis on nonlinear dynamics. The educational effort integrates research with a broad spectrum of educational and outreach activities, and includes: (a) integrating nonlinear dynamics into undergraduate courses in engineering, (b) developing advanced undergraduate and graduate courses on nonlinear dynamics, (c) implementing outreach activities for K-12 students. This integrated research and educational program will provide a new and comprehensive methodology for damage detection in high-dimensional nonlinear complex systems. This research will make significant contributions to the fields of structural dynamics, fluid-structure interactions, and sensing, and it has immediate potential to impact industry because it addresses important practical engineering problems in, for instance, aerospace, civil and sensing technologies. Also, this research represents a potential benefit to society at large, and it is strengthened by a broad dissemination to enhance scientific understanding.