...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering >Numerical analysis of a small European vehicle under rollover condition
【24h】

Numerical analysis of a small European vehicle under rollover condition

机译：侧倾条件下的小型欧洲车辆的数值分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Quasi-static and dynamic roof crush simulations have been carried out successfully on a small European car that was loaded at different pitch/roll angles. The results obtained were validated against the MIRA experimental dynamic roof crush outputs and against the Bolton experiments performed under FMVSS 216. Overall, the outcomes show that bonded windscreens contribute to nearly 30 per cent of the roof strength, thus confirming similar results obtained by a number of other researchers. Furthermore, these results show that roof strength is a function of roll and pitch angles which also greatly influence the overall intrusion rate. The new findings illustrate that, having a fixed loading pitch angle, the roof strength decreases when the roll angles are between 15 and 45°. If the pitch angle is increased, the same phenomenon of reduced strength is observed. However, this does not signify that the roof becomes weaker with increasing pitch angle, because there are limits within which this can occur, and hence the worst-case loading that yields the smallest strength is found at pitch 10° and roll 45°. Therefore, it is recommended in this paper that an update be made to the FMVSS 216, where a roll angle of 45° (not 25°) and a pitch angle of 10° (not 5°) be used as they constitute the worst-case loading condition. As a result, a more realistic test configuration with angles that replicate real-world accident data can be represented.
机译：在一辆以不同俯仰/侧倾角加载的小型欧洲汽车上，已经成功进行了准静态和动态车顶碰撞模拟。相对于MIRA实验动态屋面压榨输出和根据FMVSS 216执行的Bolton实验，对所得结果进行了验证。总体而言，结果表明，粘结的挡风玻璃占屋面强度的近30％，因此证实了许多人获得的类似结果其他研究人员。此外，这些结果表明，车顶强度是侧倾角和俯仰角的函数，而俯仰角和俯仰角也极大地影响了总体入侵率。新的发现表明，在具有固定的载荷俯仰角的情况下，当侧倾角在15至45°之间时，车顶强度会降低。如果桨距角增加，则观察到相同的强度降低现象。但是，这并不表示顶棚会随着俯仰角的增加而变弱，因为在一定范围内会发生这种情况，因此，在俯仰10°和侧倾45°时会发现产生最小强度的最坏情况载荷。因此，本文建议对FMVSS 216进行更新，其中使用45°（不是25°）的侧倾角和10°（不是5°）的俯仰角，因为它们构成了最差的-装箱条件。结果，可以表现出更真实的测试配置，其角度可以复制实际事故数据。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号