前排女性乘员约束系统匹配与兼容性研究

发布时间：2018-03-08 10:49

本文选题：正面碰撞工况　切入点：前排女性乘员　出处：《河北工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着经济的发展和人民物质生活的需要,汽车安全性能受到越来越多消费者的重视。据权威机构调查显示,安全性能已经成为购车考虑的首要因素。目前,汽车上约束系统的设计主要以身材高大的男性乘员为基础,对身材娇小的女性乘员考虑较少。而在实际生活中,随着女性社会地位的提高,女性驾驶员的数量增长十分迅速,如何更好的保护女性乘员成为亟待解决的问题。同时,汽车碰撞试验中前排增加女性假人是较为明显的国际趋势,国内相关法规和C-NCAP也将向此方向发展。因此,研究前排女性乘员约束系统的匹配和兼容性具有一定的开创性和前瞻性,可以为国内相关安全法规的后续版本中增加前排女性假人的要求打下一定基础,具有较大的现实意义。根据某车型现有的乘员约束系统配置,通过分析气囊、安全带、转向管柱等安全部件,围绕驾驶和副驾驶位置男女乘员约束系统的匹配与兼容性问题进行分析和优化,结合MADYMO仿真分析手段,建立汽车正面碰撞的仿真模型,通过仿真曲线与试验曲线的对标对比,验证模型的正确性,再计算该约束系统对前排女性乘员的保护效果,通过分析对比各个部位的伤害值的差异,找出不足并对各影响因素进行改进优化,同时将优化后的方案应用在男性乘员上,通过互相匹配兼容找到最优方案。研究结果表明:现有驾驶员侧约束系统通过优化安全带限力等级、安全气囊气孔、转向管柱压溃力等方式,能够同时满足男性驾驶员和女性驾驶员的伤害值要求,提高了约束系统的性能;现有前排乘员侧约束系统通过改变安全带限力、气孔尺寸或者气囊体积等常规的方法,都只能单独有效保护男性乘员或女性乘员,不能同时较好地保护男性乘员和女性乘员,需要使用双级发生器气囊才能同时满足男性乘员和女性乘员的安全性能要求,但成本大幅提高。
[Abstract]:With the development of economy and the needs of people's material life, more and more consumers pay attention to the safety performance of automobiles. According to the investigation of authoritative organizations, safety performance has become the first factor to be considered in the purchase of cars. At present, The design of the restraint system on the automobile is mainly based on the tall male occupants, who are less concerned about the petite female occupants. In real life, the number of female drivers increases rapidly with the advancement of the social status of the women. How to better protect female occupants becomes an urgent problem to be solved. At the same time, it is an obvious international trend to increase female dummy in the front row of automobile crash test, and the relevant domestic laws and regulations and C-NCAP will also develop in this direction. The research on the matching and compatibility of the front row female occupant restraint system has some originality and foresight, which can lay a foundation for increasing the requirement of the front row female dummy in the subsequent versions of the relevant domestic safety regulations. It is of great practical significance. According to the configuration of the existing passenger restraint system of a certain vehicle, by analyzing the safety components such as airbag, seat belt, steering string, etc., This paper analyzes and optimizes the matching and compatibility of male and female passenger restraint system in driving and copilot positions, and establishes the simulation model of vehicle frontal impact by combining the MADYMO simulation analysis method, and compares the simulation curve with the test curve through the contrast between the simulation curve and the test curve. The validity of the model is verified, and then the protective effect of the constraint system to the female occupants in the front row is calculated. By analyzing and comparing the difference of injury values in different parts, the deficiencies are found and the influencing factors are improved and optimized. At the same time, the optimized scheme is applied to the male crew, and the optimal scheme is found by matching and compatibility. The results show that the existing driver side restraint system optimizes the seatbelt force limit grade and the airbag air hole. Steering string crushing force can meet the injury value requirements of both male and female drivers and improve the performance of the restraint system. Conventional methods such as stomatal size or airbag volume can only protect male or female occupants independently and effectively, and cannot better protect both male and female occupants at the same time. Two stage generator airbags are required to meet the safety performance requirements of both male and female occupants, but the costs are significantly increased.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.61

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