Theoretical study of heat conduction in the multi-disc brake integrated into the drive wheel AGV during braking

• Autorzy: Varecha Daniel , Kohár Róbert , Lukáč Michal

Identyfikatory

DOI

10.24425/bpasts.2021.136718

• Języki publikacji: EN

Abstrakty

EN

This paper is focused on the theoretical study of heat conduction in the multi-brake system of the automated guided vehicle (AGV). The study aims to compare the amount of heat generated during braking from 10 m/s until a stop in a brake system based on organic and ceramic friction material. The theoretical study of heat conduction is solved in Matlab computational software using a derived Fourier partial differential equation for nonstationary heat conduction. The results of the simulation of the heat conduction are shown in the diagrams and indicate not only the temperature dependence in the period during braking from a speed of 10 m/s to a stop but also the amount of heat accumulated in the steel disc during braking. The simulation results show that braking in both brake systems generates approximately the same amount of heat. The difference occurs in the period of thermal activity, which was influenced by the length of the braking distance. This is caused by a coefficient of friction that significantly affects the final braking result. Finally, it can be stated that the brake system based on organic material must be equipped with a steel disc with a minimum thickness of 8 mm. This is because the brake system based on organic friction material has a set temperature limit of 160 degrees Celsius. The results presented in this study will help an engineer constructor to choose the right procedures and parameters of geometry for designing the mentioned braking system for the considered AGV.

Słowa kluczowe

EN

simulation; braking systems; one-dimensional heat conduction; multidisc brakes; AGV; organic brake pad; ceramic brake pad

PL

symulacja; układy hamulcowe; przewodzenie ciepła jednowymiarowe; hamulec wielotarczowy; AGV; klocki hamulcowe ceramiczne; klocki hamulcowe organiczne

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2021
• Tom: Vol. 69, nr 2
• Strony: art. no. e136718
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Varecha Daniel

• University of Žilina, Faculty of Mechanical Engineering, Department of Design and Mechanical Elements, Univerzitná 8215/1, 010 26 Žilina, Slovakia

autor

Kohár Róbert

• University of Žilina, Faculty of Mechanical Engineering, Department of Design and Mechanical Elements, Univerzitná 8215/1, 010 26 Žilina, Slovakia

autor

Lukáč Michal

• University of Žilina, Faculty of Mechanical Engineering, Department of Design and Mechanical Elements, Univerzitná 8215/1, 010 26 Žilina, Slovakia

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).