吴新烨,郭良镕,刘中华.基于碰撞动力学的高速公路线形与行驶安全研究[J].高技术通讯(中文),2022,32(12):1283~1290 |
基于碰撞动力学的高速公路线形与行驶安全研究 |
Study on highway alignment and driving safety based on collision dynamics |
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DOI:10. 3772/ j. issn. 1002-0470. 2022. 12. 008 |
中文关键词: 交通工程; 安全行驶; 碰撞动力学; 高速公路; 道路线形 |
英文关键词: traffic engineering, safe driving, collision dynamics, highway, road alignment |
基金项目: |
作者 | 单位 | 吴新烨 | (厦门大学建筑与土木工程学院厦门 361005)
(福建省滨海土木工程数字仿真重点实验室厦门 361005) | 郭良镕 | (厦门大学建筑与土木工程学院厦门 361005)
(福建省滨海土木工程数字仿真重点实验室厦门 361005) | 刘中华 | (厦门大学建筑与土木工程学院厦门 361005)
(福建省滨海土木工程数字仿真重点实验室厦门 361005) |
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中文摘要: |
为了减小不合理道路线形对车辆行驶安全性的影响,开展了道路线形与碰撞事故后的车辆行驶稳定性的研究。通过二维点碰撞动力学分析,建立车辆碰撞事故模型,推导车辆碰撞前后动力学参数的关系。通过建立碰撞后车路耦合动力学模型,以车辆侧翻为临界条件,推导圆曲线半径和超高的安全阈值关系式,提出基于碰撞后车辆行驶安全的道路线形设计建议方案。通过PC-Crash仿真模拟碰撞事故,验证了建议方案的合理性。 |
英文摘要: |
In order to reduce the influence of unreasonable road alignment on vehicle driving safety, the research on road alignment and vehicle driving stability after collision accident is carried out. A collision model is established by two-dimensional point collision dynamics analysis, and the relationship of vehicle dynamic parameters before and after collision is deduced. The vehicle-road coupling dynamics model after the collision is established. Based on the vehicle rollover critical condition, the safety threshold is calculated through the relationship between circular curve radius and ultra high. A road alignment design recommendation based on vehicle driving safety after the collision is proposed, and the rationality of the recommendation is verified by PC-Crash simulation. |
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