Study of crash energy absorption characteristics of inversion tube on passenger vehicle

2017 2nd International Seminar on Advances in Materials Science and Engineering

Liu, Jiandong^1 ; Liu, Tao^1 ; Yao, Shengjie^1 ; Zhao, Rutao^2

Harbin Institute of Technology at Weihai, Shandong, China^1

Shanghai Motor Vehicle Inspection Center, Shanghai, China^2

关键词: Absorption characteristics;    Crash energy absorption;    Crash simulation;    Deformation modes;    Full vehicle model;    Key dimensions;    Passenger vehicles;    Vehicle crashes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012142/pdf
DOI  :  10.1088/1757-899X/231/1/012142

来源: IOP

【 摘 要 】

This article studied the energy absorption characteristics of the inversion tube and acquired the inversion tube design key dimensions under theoretical conditions by performing formula derivation in the quasi-static and dynamic state based on the working principle of the inversion tube: free inversion. The article further adopted HyperMesh and LS-Dyna to perform simulation and compared the simulation result with the theoretical calculating value for comparison. The design was applied in the full-vehicle model to perform 50km/h front fullwidth crash simulation. The findings showed that the deformation mode of the inversion tube in the full-vehicle crash was consistent with the design mode, and the inversion tube absorbed 33.0% of total energy, thereby conforming to the vehicle safety design requirements.