Preliminary study of the Vacuum Packed Particles torsional damper
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Warsaw University of Technology, Institute of Machine Design Fundamentals, Warsaw, Poland
Submission date: 2020-03-27
Final revision date: 2020-09-30
Acceptance date: 2020-10-30
Online publication date: 2020-12-08
Publication date: 2021-01-15
Corresponding author
Dominik Rodak   

faculty of automotive and construction machinery engineering, Warsaw Univeristy of Technology, Narbutta, 84, 02-524, Warszawa, Poland
Journal of Theoretical and Applied Mechanics 2021;59(1):173-178
The paper presents a prototype of an innovatory controllable torsional damper. The device is composed of Vacuum Packed Particles. Such structures are made of granular materials placed in a hermetic soft encapsulation. Generating so called underpressure inside the system changes global dissipative properties of the granular structure. The partial vacuum value is a convenient way to control physical properties of the granular structure. The authors introduce an original prototype of a torsional vibration attenuator. In the experimental part, preliminary experimental results are presented and discussed. To capture the real response of the device, a Bouc-Wen rheological model is adopted.
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