A new solution for impact energy dissipation during collision of railway vehicles

Costescu, Dan Mihail; Hadăr, Anton; Pastramă, Ştefan Dan

doi:10.1016/j.matpr.2020.02.336

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…Gao et al designed an active-passive integrated energy absorber, which improved the energy absorption sequence of the multistage energy absorption system, broke through the limitation of the coupler on the longitudinal size of the energy absorber, and significantly improved the deformation stroke of the energy absorber [18]. A new energy absorber designed by Costescu et al uses controlled plastic deformation, is relatively inexpensive to implement, and does not involve any special technical or logistical issues [19]. Tang et al proposed a framework for simulating railway vehicle dynamics using the GPMBS software package to improve the efficiency of railway vehicle dynamics simulation [20].…”

Section: Introducntionmentioning

confidence: 99%

Dynamics Modeling and Simulation Analysis of a Gas-hydraulic Buffer Based on AMESim

Feng

Heng

Wang³

et al. 2023

Preprint

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Previous studies on train crash behaviour have focused on the entire train buffer system, and few studies have focused on the internal structure and dynamic characteristics of the gas-hydraulic buffer in the buffer device. In this paper accurate three-dimensional and dynamic models of a gas-hydraulic shock absorber are constructed, and a simulation model of the gas-hydraulic shock absorber is established using the AMESim software platform. Based on this model, the influence of the structural parameters of the gas-hydraulic buffer and the parameters of the internal working medium on its dynamic characteristics is studied, which provides a reference for the practical application, development and optimization of gas-hydraulic buffers in the future. Compared with the impedance force-travel data curve of an impact trolley crash test at different speeds, it is proven that the model can simulate the dynamic characteristics of the gas-hydraulic buffer in the collision process. Key words: Gas-hydraulic buffer; Dynamic characteristics; Structural parameters; Working medium; Simulation analysis

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Section: Introducntionmentioning

confidence: 99%

Dynamics Modeling and Simulation Analysis of a Gas-hydraulic Buffer Based on AMESim

Feng

Heng

Wang³

et al. 2023

Preprint

View full text Add to dashboard Cite

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Dynamic response characteristics of an E-type impact isolation structure with a free mass constraint

Qin,

Wang,

Sun

et al. 2024

Thin-Walled Structures

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Construction of Collision Equivalent Scaled Model for Locomotive Using Multi-Parameter Nondimensional Method

Ke-fei

Duan

et al. 2023

Int. J. Str. Stab. Dyn.

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At present, the research on crashworthiness of locomotive mainly adopts the method of theoretical analysis, numerical simulation and component test, it is too expensive and less repeatable to carry out vehicle crash tests. Therefore, a method to construct the collision equivalent scaled model (SM) for locomotive based on multi-parameter nondimensional is presented in this paper. Firstly, an equivalent method of structural dynamic responses was proposed. The extraction process and analysis method of dynamic responses for thin plate structures widely existing in locomotives were studied. Then, according to the structural characteristics of the locomotive, the partition equivalent design was carried out, and a dimensionless analysis model of impact dynamic responses for SM was established. Finally, the SM crash test was carried out to verify the effectiveness of collision equivalent SM established, it was found that the SM has high reliability, it can achieve equivalence with the locomotive for energy absorption, average impact force, average acceleration of cab and center of gravity of vehicle body. Carrying out the SM crash test can study the reasonable configuration of energy absorption parameters for locomotives and obtain the impact dynamic responses of locomotives under different configurations of energy absorption parameters.

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A new solution for impact energy dissipation during collision of railway vehicles

Cited by 4 publications

References 6 publications

Dynamics Modeling and Simulation Analysis of a Gas-hydraulic Buffer Based on AMESim

Dynamics Modeling and Simulation Analysis of a Gas-hydraulic Buffer Based on AMESim

Dynamic response characteristics of an E-type impact isolation structure with a free mass constraint

Construction of Collision Equivalent Scaled Model for Locomotive Using Multi-Parameter Nondimensional Method

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