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

Regents Of The University Of Michigan - Ann Arbor, Ann Arbor MI

Investigators

Abstract

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.