Adaptive crash energy absorber based on a granular jamming mechanism

• Autorzy: Bartkowski Piotr , Bukowiecki Hubert , Gawiński Franciszek , Zalewski Robert

Identyfikatory

DOI

10.24425/bpasts.2021.139002

• Języki publikacji: EN

Abstrakty

EN

The following discussion concerns the use of innovative smart materials called vacuum-packed particles (VPPs) as active energy absorbers. VPP, also known as a granular jamming system, is a structure composed of granular media contained within an elastomer coating. By changing the vacuum pressure inside the coating, it is possible to control the mechanical properties of the structure. VPPs have many applications, e.g. in medicine, robotics, and vibration damping. No attempts have yet been made to use VPPs to absorb the energy of a collision, although, given their properties, this could very well be an interesting application. In the first part of the paper, the general concept of the absorber is presented. Then a prototype and the empirical tests conducted are precisely described. The middle part of the paper considers the basic properties of VPP and modeling methodology. A proposal for a constitutive equation is presented, and a numerical simulation using LS-Dyna was performed. In the final section, the concept of a smart parking post is presented.

Słowa kluczowe

EN

granular jamming; smart structures; crash energy absorption

PL

zagłuszanie ziarniste; konstrukcje inteligentne; pochłanianie energii zderzenia

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2022
• Tom: Vol. 70, nr 1
• Strony: art. no. e139002
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Bartkowski Piotr

• Warsaw University of Technology, Faculty of Automotive and Construction Machinery Engineering, Poland

autor

Bukowiecki Hubert

• Warsaw University of Technology, Faculty of Automotive and Construction Machinery Engineering, Poland

autor

Gawiński Franciszek

• Warsaw University of Technology, Faculty of Automotive and Construction Machinery Engineering, Poland

autor

Zalewski Robert

• Warsaw University of Technology, Faculty of Automotive and Construction Machinery Engineering, Poland

Bibliografia

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