Title : Interactive visualization of glass window vibrations damped with piezoelectric actuators.

Project Lead : Michal Kasparek From : Technical University of Liberec (Czech Republic)

Dates : from 2013-12-19 14:04:44 to 2015-02-05 16:17:37

Description :

Motivation and objectives :
With growing importance of modern technology and its impact on everyday life the need for minimizing emitted noise and vibrations is rising. One of the most recent attempts to reduce the negative effects of noise and vibrations on human organism is by utilizing features of piezoelectric materials for damping this vibrations more efficiently than conventional passive insulating material. The objective of proposed project would thus be to create an adaptive, portable and highly interactive VR visualization of piezoelectrically damped glass window in order to extend the understanding of kinematic effects of damping elements based on real data and thus to improve the efficiency of ongoing experiments with thin piezoelectric damping layers.

Teams :
The research team of Laboratory of piezoelectric damping of vibrations is established at the Faculty of mechatronics and interdisciplinary engineering studies and is lead by the top specialist in the field of piezoelectric materials associate professor doc. Ing. Pavel Mokr, Ph.D.

Dates :
starting date : 19 May, 2014
ending date : 30 May, 2014

Facilities descriptions :
http://visionair-browser.g-scop.grenoble-inp.fr/visionair/Browser/Catalogs/VDS.PL.html

Recordings & Results :
The objective of the project was to create specialized visualization tool capable of requested features. The accent was being focused on interactivity and simple controllability so the instrument could be used also for the purpose of presentations or education. The requested features were: - to visualize the movement of glass under different conditions, - adaptability for future measurements and modifications, - adjustable 3D perspective with different scale of displacement amplification. This is very important, because the real displacement range of glass vibrations is very small and fast and thus invisible for human perception.

Conclusions :
The main goal of the project was achieved by developing the stand-alone visualisation tool. The means of modern 3D graphical presentation technologies were utilized to visualize the movement of glass under different conditions which is to be compared with future measurements and modifications. The program allows viewing the data in adjustable 3D perspective with different scale of displacement amplification. This is very important, because the real displacement range of glass vibrations is very small and fast and thus invisible for human perception. By utilizing the Universal File Format the portability and usability with other measurement or visualisation technologies in future is guaranteed. The realization of presented project brought deeper understanding of technologies, effects and phenomenon connected with the research of plane modal behaviour and its application in utilizing the properties of piezoelectric materials for semi-active damping of sound and vibrations.




Project Images :






Other project resources :

Kasparek_1.PDF
movie_Kasparek_1.mp4
movie_Kasparek_2.mp4