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首页> 外文会议>International Conference on Measuring Technology and Mechatronics Automation >Research on Dual-Trapezoid Curve Construction of Automobile Collision Acceleration Based on Feature Parameter Extraction
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Research on Dual-Trapezoid Curve Construction of Automobile Collision Acceleration Based on Feature Parameter Extraction

机译：基于特征参数提取的汽车碰撞加速度双梯形曲线构建研究

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摘要

Automobile collision acceleration is an important parameter that directly reflects the collision process of automobile. It is closely related to occupant injury and widely used in the design of automobile safety structure. Usually the collision acceleration waveform is simplified into dual-trapezoid curve, in order to analyze the relationship between automobile body structure and occupant injury. However, the construction of dual-trapezoid curve relies mainly on the subjective experience of technicians, which limits the popularization and practical application of dual-trapezoid curve. On the basis of ensuring that the real vehicle collision waveform and the dual-trapezoid curve are equivalent in terms of operation time and energy, this paper proposes a feature parameter extraction method based on real vehicle collision waveform, which can simplify the complex and ever changing collision acceleration waveform into dual-trapezoid curve in parameters. And it also conducts trolley contrast test on the original waveform and dual-trapezoid curve, and injury response and movement gesture of the dummies are well matched. The results show that the dual-trapezoid curve of collision acceleration constructed can replace the corresponding original automobile collision waveform to be applied in the development of vehicle safety system.
机译：汽车碰撞加速度是直接反映汽车碰撞过程的重要参数。它与乘员伤害密切相关，广泛用于汽车安全结构的设计中。通常将碰撞加速度波形简化为双梯形曲线，以分析车身结构与乘员伤害之间的关系。但是，双梯形曲线的构建主要依靠技术人员的主观经验，限制了双梯形曲线的推广和实际应用。在保证实际车辆碰撞波形和双梯形曲线在操作时间和能量上均等的基础上，提出了一种基于真实车辆碰撞波形的特征参数提取方法，可以简化复杂多变的特征碰撞加速度波形在参数上成双梯形曲线。并且还对原始波形和双梯形曲线进行了手推车对比测试，假人的受伤反应和运动姿势都很好地匹配了。结果表明，所建立的碰撞加速的双梯形曲线可以代替相应的原始汽车碰撞波形，用于汽车安全系统的开发。

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