Impacting experiment and numerical simulation of energy-absorbing component of vehicles

Xie Su-chao; Tian Hong-qi; Yao Song

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Xie Su-chao, Tian Hong-qi, Yao Song. Impacting experiment and numerical simulation of energy-absorbing component of vehicles[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 1-5.

Citation:

Xie Su-chao, Tian Hong-qi, Yao Song. Impacting experiment and numerical simulation of energy-absorbing component of vehicles[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 1-5.

Xie Su-chao, Tian Hong-qi, Yao Song. Impacting experiment and numerical simulation of energy-absorbing component of vehicles[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 1-5.

Citation:

Xie Su-chao, Tian Hong-qi, Yao Song. Impacting experiment and numerical simulation of energy-absorbing component of vehicles[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 1-5.

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Impacting experiment and numerical simulation of energy-absorbing component of vehicles

Key Laboratory for Traffic Safety on Track of Ministry of Education, Central South University, Changsha 410075, Hunan, China

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Author Bio:
Xie Su-chao(1983-), male, doctoral student, +86-731-2656675, xsc0407@163.com

Tian Hong-qi(1959-), female, PhD, professor, +86-731-2655390, thq@mail.csu.edu.cn
Received Date: 2007-12-15
Publish Date: 2008-06-25

Abstract

Abstract

In order to design the crashworthy car-body of one train and to realize its passive safety, an impacting experiment fo trolley was carried out to study the energy-absorbing property of energy-absorbing component for the car-body. During the impacting experiment process of trolley, the plastic deformation of the component is steady and ordered beginning with the anticipative part, and the absorbed energy is proportional to the maximum deformation, so the component has good energy-absorbing property. Based on experiment result, a finite element impacting model was set up by using explicit dynamic finite element theory, and numerical simulation was carried out. Relativity analysis result shows that simulation result accords well with experiment result, the curves of impacting forces are consistent well, and the maximum peak values of impacting forces are 2486.3 and 2423.1 kN respectively, the differences of the maximum deformations and the first peak values of impacting forces are less than 3%, and the difference of rebound velocities is less than 4%. So the validity and reliability of numerical simulation are verified by impacting experiment, and it is feasible to design and optimize the energy-absorbing components through numerical calculation.
- vehicle engineering,
- crashworthiness,
- energy-absorbing component,
- impacting experiment,
- numerical simulation,
- explicit finite element theory

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References(10)

References

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