Autor: Rodak, Dominik - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Preliminary study of the Vacuum Packed Particles torsional damper
Autorzy:: Zalewski, Robert
Rodak, Dominik
Powiązania:: https://bibliotekanauki.pl/articles/1839686.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: Vacuum Packed Particles
torsional damper
experimental research
Bouc-Wen model
Opis:: 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.
Źródło:: Journal of Theoretical and Applied Mechanics; 2021, 59, 1; 173-178
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Possibilities of vacuum packed particles application in blast mitigation seats in military armored vehicles
Autorzy:: Rodak, Dominik
Żurawski, Mateusz
Gmitrzuk, Michał
Starczewski, Lech
Powiązania:: https://bibliotekanauki.pl/articles/2173527.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: blast mitigation seat
STANAG 4569
drop test
Vacuum Packed Particles
fotel łagodzący skutki wybuchu
test upadku
cząstki pakowane próżniowo
Opis:: Blast mitigation continues to be a popular field of research when military vehicles are concerned. The main problem is coping with the vehicle global motion consequences following an explosion. The paper presents a potential application of the linear vacuum packed particle (VPP) damper as a supplementation for a viscous shock absorber in a traditional blast mitigation seat design. The paper also presents field test results for the underbelly blast explosion, comparing them to the laboratory tests carried out on the impact bench. To collect accelerations, the anthropomorphic test device, i.e. the Hybrid III dummy, was used. A set of numerical simulations of the modified blast mitigation seat with the additional VPP linear damper were revealed. The VPP damper was modeled according to the Johnson–Cook model of viscoplasticity. The Hertzian contact theory was adopted to model the contact between the vehicle and the ground. The reduction of the dynamic response index (DRI) in the case of the VPP damper application was also proved.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 1; e138238, 1--8
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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