Mechanical Engineering seminar

Abstract

The presentation shows spatial (modal) filtration in relation to applications in analyzing the dynamics of machines and engineering structures. The author explains spatial filtering and compares it to time domain filtering, showing useful analogies. Next, he will describe further implementations of spatial (modal) filtering, such as:

• continuous modal filter,
• discrete modal filter,
• adaptive modal filter,
• operational modal filter,
• spatial filter based on operational deflection shapes.

Each of the implementations will be shown in an example to bring the next uses of the filter closer. And so it is presented in order:

• modal control,
• tracking the changing modal parameters of the model,
• identification of excitation forces,
• damage detection,
• damage localization.

Biography

PhD. DSc. Krzysztof MENDROK is an Associate Professor in the Department of Robotics and Mechatronics of the AGH University of Science and Technology. He is interested in the development and application of various SHM algorithms. He mainly deals with low-frequency vibration-based methods for damage detection and inverse dynamic problem for excitation identification. One technique recently developed is the use of spatial filtration in structural health control and monitoring.

He received his Ph.D. in 2003 for the thesis “Application of TPA algorithms to the identification of excitation forces”. He received his habilitation (DSc.) in 2012 for his work on the application of the inverse problem in structural health monitoring.

Currently, he is the dean of the Faculty of Mechanical Engineering and Robotics of the AGH University of Science and Technology and the chairman of the scientific discipline board of mechanical engineering at the AGH University of Science and Technology. He is a member of the board of the Polish Society of Technical Diagnostics.