Vibration frequency of modified wave beam guardrail based on collision simulation and vibration acceleration analysis

Jin Jiang; Yun-wei Meng; Jian Liao; Guang-yan Qing; Qing Yang

doi:10.1117/12.2613710

10 November 2021 Vibration frequency of modified wave beam guardrail based on collision simulation and vibration acceleration analysis

Jin Jiang, Yun-wei Meng, Jian Liao, Guang-yan Qing, Qing Yang

Author Affiliations +

Proceedings Volume 12050, International Conference on Smart Transportation and City Engineering 2021; 1205047 (2021) https://doi.org/10.1117/12.2613710
Event: 2021 International Conference on Smart Transportation and City Engineering, 2021, Chongqing, China

Abstract

With the development of my country's transportation industry, the original road guardrail cannot meet the protection requirements of the existing regulations and cannot be used. If the old guardrail is completely removed, it will not only cost a huge amount of money but also cause serious waste of resources. The guardrail can achieve the protective effect in the specification, which is conducive to the saving of funds and resources. Therefore, this article mainly conducts finite element collision simulation analysis for the two transformation schemes of Class A wave beams, and obtains the time and space distribution of the vibration frequency and vibration acceleration of the wave beams of the two schemes, and then compares the collision vibration frequency and The natural frequency range of the corrugated beam material. The protection effect is analyzed and evaluated in terms of the vibration frequency and vibration acceleration of the guardrail. The results show that the vibration frequency distribution range of the two schemes is different. The vibration acceleration of changing the original single-layer double-wave corrugated beam slab to double-layer double-wave corrugated beam slab is generally higher than that of adding the upper column and cross-beam to the original old A-level guardrail, and the peak vibration acceleration value is the same. The ratio is 12.43% higher. Therefore, it is more conducive to improve the protective effect of the guardrail by adding upper pillars and transverse beams to the original old A-level guardrail.

Citation Download Citation

Jin Jiang, Yun-wei Meng, Jian Liao, Guang-yan Qing, and Qing Yang "Vibration frequency of modified wave beam guardrail based on collision simulation and vibration acceleration analysis", Proc. SPIE 12050, International Conference on Smart Transportation and City Engineering 2021, 1205047 (10 November 2021); https://doi.org/10.1117/12.2613710

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KEYWORDS

Optical simulations

Safety

Finite element methods

Analytical research

Vibration simulation

3D modeling

Clouds

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