负载限制肩带对右前乘客动力学的影响 在斜偏偏偏和NCAP正面碰撞测试中
1ProBiomechanics LLC, Bloomfield Hills, Michigan.
Traffic injury prevention
|November 26, 2024
概括
肩带负载限制在偏移移动的可变形屏障冲击中允许过度前进,导致干和头部冲击. 这降低了乘客的安全套的有效性,特别是在多次事故中.
科学领域:
- 乘客安全工作人员的安全.
- 生物机械工程 生物机械工程
- 碰撞试验分析分析.
背景情况:
- 车辆安全标准越来越依赖于先进的碰撞测试模拟.
- 了解高严重性,斜撞击中的乘客动力学对于改进安全套系统至关重要.
- 偏移移动可变形屏障 (OMDB) 测试比传统的NCAP测试提供了比传统的NCAP测试更现实的模拟某些真实世界的碰撞场景.
研究的目的:
- 为了评估肩带负载限制对90公里/小时斜坡OMDB冲击中右前乘客动力学的影响.
- 为了将这些动力学与在低速NCAP碰撞测试中观察到的动力学进行比较.
- 为了研究从收缩机上带的支付对前进外游的影响.
主要方法:
- 在90公里/小时的速度进行了18次OMDB碰撞测试,其中35%的重叠和15度的角度.
- 使用了50百分点的THOR乘客人形,配有车载摄像头,皮带负荷和肩带位移测量.
- 结果与11次NCAP正面撞击以56公里/小时的速度进行了比较,使用第5百分点混合III乘客人偶.
主要成果:
- 在OMDB测试中,肩带从肩膀上滑落,导致仪表板和安全气囊撞击.
- 上半身和头部的前方外出是显著的,测试后有相当大的松动带.
- 相比之下,NCAP测试显示,乘客动力学以安全气囊为中心,没有内部冲击.
结论:
- 测试的肩带负载限制水平不足,允许过度外出,导致乘客撞击.
- 观察到限制效率降低,在多次撞击或翻转场景中存在风险.
- 进一步完善负载限制策略是必要的,以加强在严重斜撞击中乘客的保护.
相关概念视频
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