Reliability Analysis of Collision Energy Absorption for Anti-climber Devices Based on Improved Sum of Sine Surrogate Model
| Autor: | CAO Yang, LIANG Xiaoke, ZHANG Yue, WANG Qiang, YAO Chengyong, QU Tong |
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| Jazyk: | čínština |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Chengshi guidao jiaotong yanjiu, Vol 27, Iss 5, Pp 67-72 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1007-869X 1007-869x |
| DOI: | 10.16037/j.1007-869x.2024.05.014.html |
| Popis: | Objective To reasonably evaluate the energy absorption reliability index of anti-climber devices, a reliability analysis method based on ISSSM (improved sinusoidal and surrogate model) is proposed. Method Firstly, a finite element model for anti-climber device collision is established. Secondly, the rationality of the finite element simulation model is verified based on the collision test data of the anti-climber device. Then, based on the principles of sum of sine function construction, the basic form of the force-displacement function for the anti-climber device collision process is clarified. According to the energy absorption consistency criterion, the anti-climber device energy absorption ISSSM is constructed. Combining reliability theory, a reliability analysis model for anti-climber device energy absorption is established. Finally, a specific model of anti-climber device is studied, and its energy absorption reliability index is evaluated. Result & Conclusion The constructed energy absorption ISSSM can reasonably reproduce the mechanical characteristics of the anti-climber device collision energy absorption process. When the coefficient of variation increases from 0.05 to 0.1, the energy absorption reliability index decreases from 3.07 to 1.53. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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