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自动制动系统对下肢反应的作用

Kang Lei¹, Binhai Xia¹, Yuanchang Huang¹

¹College of Mechanical and Transportation Engineering, Hunan University, Changsha, China.

Computer methods in biomechanics and biomedical engineering

|September 6, 2025

概括

自动制动和肌肉力量在正面碰撞时对下肢受伤有复杂的影响. 车会加重腿部受伤,但有助于大腿受伤,而肌肉激活会减少骨压力,但增加关节的力.

科学领域:

生物力学
伤害生物力学
汽车安全工程

背景情况:

了解乘客在正面碰撞中受伤的机制对于车辆安全至关重要.
之前的研究还没有完全阐明自动制动系统和活跃肌肉力量对受伤结果的联合影响.

研究的目的:

通过有限元模型研究自动制动和活跃肌肉力量对下肢损伤的影响.
分析这些因素对伤害指标的影响,例如指数和峰值应力.

主要方法:

使用有限元模型与混合III模拟器集成.
模拟的正面碰撞场景包括不同的制动时间和活跃的肌肉力水平.

主要成果:

长时间车会增加指数,
50公里/小时的车减轻了腿部损伤,但40公里/小时的车加剧了腿部损伤.
活动肌肉激活增加了股骨轴向力和骨指数,但降低了骨和骨峰值应力 (0. 006- 0. 009 GPa).

结论:

自动制动和活跃的肌肉力量对下肢受伤风险产生复杂,有时是对立的影响.
这些发现为设计先进的汽车安全系统提供了宝贵的见解,

关键词:

积极的肌肉力量 FE模拟自动制动下肢受伤车辆的正面撞击

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