Abstract
Research and/or Engineering Questions/Objective The passengers’ damage mechanism of vehicle with freeway guardrail impact is different from the vehicle front crash and side crash, and there is not a unified passenger’s evaluation standard. So compare the passengers’ safety evaluation methods of vehicle with freeway guardrail impact in other countries and identify appropriate evaluation index limit for our country will be as the research objectives. Methodology First, compare and analysis the passengers’ safety evaluation methods and evaluation indexes of vehicle with freeway guardrail Impact in theories in other country, and construct transformation models between each evaluation indexes. Then, based on the real vehicle crash test data which collected by Shojaati, Bmst who are from Swiss Fed Inst Tech—Zurich Switzerland and the main drafters of our country’s The Evaluation Specification For Highway Safety Barriers such as Yu Shuping and Qiao Xiyong. Third, by using the cftool platform of MATLAB, according to the Exponential index approximation methods for data fitting. Finally, finite element models and vehicle-guardrail system is created through HyperMesh, and calculated by LS-DYNA. Verify the adaptability of limit on the basis of the dynamic response of vehicle and the guardrail. Results The level of the passengers` safety standard about vehicle impact with freeway guardrail is low in the existing rules. The new limit of passengers’ safety evaluation indexes was identified, which would be useful to modify the rules. Limitations of this study The indexes limit is limited to the passengers’ safety evaluation which is a vehicle impact with guideline in the research. What does the paper offer that is new in the field in comparison to other works of the author The Mathematical regression model HPC and ASI have been constructed, and the limits of HPC in different safety level have been identified. Conclusion In the process of vehicle with freeway guardrail impact, where ASI is safety level A, HPC ≤ 180.27, where ASI is safety level B, 180.27 ≤ HPC ≤ 295.45, where ASI is safety level C, HPC ≤ 557.45.
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References
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Acknowledgments
The authors wish to acknowledge the contributions of many individuals and groups who contributed to this research: Hong PENG, Huicai LU, Zelong WANG, Zhitao WANG, Liyong YAN, Yan ZHANG; in addition, LSTC for providing the LS-DYNA finite element solver software and Altair Engineering for providing the HyperWorks pre- and post-processing software.
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Tang, H., Men, Y., Guo, Q., Liu, J., Zhao, F. (2013). Passengers’ Safety Evaluation Research Based on Vehicle with Freeway Guardrail Impact. In: Proceedings of the FISITA 2012 World Automotive Congress. Lecture Notes in Electrical Engineering, vol 197. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33805-2_60
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DOI: https://doi.org/10.1007/978-3-642-33805-2_60
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