ABSTRACT
ABSTRACT: The potential economic and life-safety implications of early damage identification in civil, aerospace and mechanical engineering systems have motivated a significant amount of research in structural health monitoring. It is hopeful to detect damage in a fast and reliable way in order to increase the safety and security, extend the working life and reduce the maintenance cost of long-span bridges. Recently, more attentions are paid for dynamical damage identification technique, such as frequency-based technique, mode-based technique. While little attention has been paid to energy damage identification technique based on acceleration responses, which is important in real-world application with wide use of accelerometer. Moreover, accurate mode shapes solution is required for the few existing energy damage identification technique.
