Simulation of metro vehicle wheel dynamic damage under the combined action of shock wave and fragments

Haipeng Hao; Xuchao Pan

doi:10.1117/12.2689455

7 September 2023 Simulation of metro vehicle wheel dynamic damage under the combined action of shock wave and fragments

Haipeng Hao, Xuchao Pan

Proceedings Volume 12790, Eighth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2023); 1279030 (2023) https://doi.org/10.1117/12.2689455
Event: 8th International Conference on Electromechanical Control Technology and Transportation (ICECTT 2023), 2023, Hangzhou, China

Abstract

In order to explore the influence of the combined action of fragments and shock wave on the surface deformation of the contour shape of metro vehicles, the combined effect of shock wave and fragments on the wheels of metro vehicles is simulated by using any Lagrange-Euler method. The unobstructed area of the wheel, the contact area between the wheel and the frame and the contact area between the wheel and the track are simulated according to the actual structure of the wheel. Firstly, through the simulation results of fragments and shock wave in the air domain, the speed change of fragments and the pressure change of shock wave are obtained, and then the simulation model is established near the three areas of the wheel, lastly, the deformation degree and deformation area of the wheel, frame and track in different areas are obtained. The results show that in the air domain without wheels, the maximum shock wave of fragments can reach 1390 MPa, and the maximum fragments speed can reach 1541 m/s. When the fragments and shock waves act on the wheel, the shock wave and fragments in the unobstructed area of the wheel have obvious effects on the deformation of the wheel flange surface, while the deformation effect of the wheel in the area where the wheel and the frame are connected is concentrated on the side of the wheel, and the wheel deformation is concentrated on the side of the wheel and the tread in the contact area between the wheel and the track.

Citation Download Citation

Haipeng Hao and Xuchao Pan "Simulation of metro vehicle wheel dynamic damage under the combined action of shock wave and fragments", Proc. SPIE 12790, Eighth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2023), 1279030 (7 September 2023); https://doi.org/10.1117/12.2689455

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KEYWORDS

Deformation

Explosives

Computer simulations

Contour modeling

Design and modelling

Numerical simulations

Plastics

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