模拟全身振动的新生儿患者在轮胎合的道路模拟器上
Patrick Kehoe1,2, Keely Gibb1, Jason Hurley1
1Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, ON, Canada.
概括
婴儿运输系统使新生儿暴露在有害的振动中. 一个新的轮胎合道路模拟器准确地测试了这些系统,使得更好的缓解策略能够为更安全的新生儿患者运输提供帮助.
科学领域:
- 生物医学工程 生物医学工程
- 运输安全运输安全
- 儿科健康 儿科健康
背景情况:
- 新生儿重症监护室 (NICU) 的患者在公路救护车运输期间面临过度全身振动的风险.
- 现有的运输系统可能会放大振动,给脆弱的婴儿带来健康风险.
- 需要标准化测试来评估和改进新生儿患者运输系统 (NPTS).
研究的目的:
- 开发一种标准化测试程序,用于评估新生儿患者运输系统中的振动水平.
- 评估缓解策略的有效性,以减少婴儿所经历的有害振动.
- 为了验证一个轮胎合的道路模拟器复制真实世界的运输振动环境.
主要方法:
- 使用MTS Model 320轮胎合道路模拟器对整辆车和NPTS进行实验室测试.
- 模拟各种道路形状和离散事件 (例如,速度颠) 以激发六度自由运动.
- 将模拟器测试中的振动数据与相应的现实道路测试数据进行比较.
- 使用的PCB Piezotronics单轴和三轴加速度计用于数据采集.
主要成果:
- 轮胎合的道路模拟器在复制道路段和合成随机配置文件方面表现出高准确性.
- 对离散事件的模拟具有很高的重复性,尽管患者的峰值振幅显示精度较低.
- 模型输入处 (床下) 的加速度计数据显示,现实世界和模拟器测试之间存在良好的相关性.
- 测试证实了模拟器在三个直角方向和三个旋转自由度中评估振动的能力.
结论:
- 一个轮胎合的道路模拟器提供了一个可控制和可重复的环境,用于准确评估新生儿患者运输系统中的振动水平.
- 这种模拟方法对于评估未来振动减轻策略的好处是有效的.
- 开发的程序提高了新生儿患者运输的安全性和可靠性.
相关概念视频
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