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经过验证的数值无约束乘客座位碰撞场景,用于高铁集成实验,计算和反向方法的高速列车

Gongxun Deng^1,2, Tuo Xu¹, Yong Peng¹

¹Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China.

Traffic injury prevention

|April 5, 2024

概括

本研究使用实验数据验证了高速列车乘客安全的数值模型. 经过验证的模型准确地预测乘客在碰撞时的反应,帮助列车内部安全设计.

科学领域:

工程工程师工程师工程师
生物力学生物力学
计算力学计算力学计算力学

背景情况:

在高速列车发展过程中,乘客安全至关重要.
列车内部在碰撞时存在重大伤害风险.

研究的目的:

为高速列车开发和验证数字乘客碰撞场景.
整合实验,计算和反向方法,以进行可靠的安全评估.

主要方法:

材料属性通过机械测试来确定,并使用反向方法进行校准.
在LS-DYNA和MADYMO.中创建了有限元 (FE) 和多体 (MB) 模型.
进行了模拟雪撞击测试,以验证模型并评估受伤情况.

主要成果:

经过实验校准的模型准确地复制了乘客的反应 (CORA分数>80%).
FE型号的头部加速度保真度略高于MB型号.
在折叠桌上发现了潜在的部和桌面接触伤害.

结论:

实验数据显著提高乘客座位模型的准确性,用于列车碰撞分析.
已验证的模型为列车内部安全设计和标准制定提供了实际支持.

关键词:

在FE-MB模拟中进行FE-MB模拟.铁路车辆碰撞铁路车辆碰撞模拟撞车测试模拟撞车测试材料机械试验材料机械试验乘客伤害反应对乘客伤害的反应

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