Vibration analysis and piezoelectricity – their applications in structural condition monitoring by Prof. Nan Wu

The Mechanical Engineering Research Forum (MERF), Faculty of Engineering and the Built Environment, invites you to a lecture presentation on the ‘Vibration analysis and piezoelectricity – their applications in structural condition monitoring’ by Prof. Nan Wu

Date: 4 March 2022

Time:  14:00 – 15:00

Joining link: shorturl.at/yIV15

Name of presenter: Dr. Nan Wu

Brief bio

Dr. Nan Wu obtained his B.Eng and M.Sc from Northeastern University China in 2005 and 2008, respectively, and received his Ph.D. degree in 2012 from the University of Manitoba. Currently, Dr. Wu is working as an Associate Professor at the Department of Mechanical Engineering – the University of Manitoba with teaching and research interests in the fields of Mechanical Vibration, Smart Materials and Structures, Metamaterials, Nano-technology, and their applications to Structural Health Monitoring, Structural Enhancement, and Energy Harvesting.

http://home.cc.umanitoba.ca/~wun/

Abstract of presentation

Condition monitoring or ‘health’ monitoring of engineering structures and components, like vehicle frames and machinery parts, can be realized by various technologies, such as ultrasonic tests and dye penetrant inspection. Vibration analysis as a global condition monitoring method is studied in our research group and will be discussed in this research talk. Piezoelectricity is applied for self-powered sensing. First, Entropy-based vibration analysis for crack detection and localization will be introduced as a possible prompt for new threads in the field. Wavelet analysis as a ‘microscope’ of the perturbations in both time and spatial domains signals will then be discussed for high sensitive structural condition monitoring. In addition, a piezo-powered wireless damage detection solution will be presented. At last, some other research works/thinking will be shared for open discussion.