共查询到20条相似文献,搜索用时 562 毫秒
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仪表板中央悬浮屏幕是近年来汽车内饰造型的流行趋势之一,但越来越大的屏幕一定程度上占据了副驾驶气囊展开后的空间,甚至成为气囊展开路径上的障碍物,所以其与副驾驶安全气囊的空间布置匹配关系必须受到足够的重视。文章采用基于FPM粒子法的副驾驶气囊仿真模型,以某SUV车型中期改款时引进的新悬浮屏幕设计为例,对"气囊-悬浮屏幕"之间的空间布置相对关系展开仿真研究,在仪表板造型早期及时发现悬浮屏幕阻碍气囊展开和气囊展开时过分挤压悬浮屏幕等潜在问题并进行优化,为今后类似项目的开发提供了一种可借鉴的研究方法。 相似文献
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《汽车安全与节能学报》2015,(4)
侧气帘(CAB)是提升车辆安全性的重要配置。该文使用Primer软件中的均压法(CV)与粒子法(CPM)两种方法,研究了侧气帘静爆展开过程。根据选择的内饰网格划分﹑侧气帘折叠﹑气囊起爆等方式,搭建了侧气帘静爆仿真模型。用该模型仿真对比了均压法和粒子法的气帘展开过程,分析了这两种方法对导向支架的影响,并对有导向支架和无导向支架两种工况进行了分析。结果表明:粒子法搭建的侧气帘模型的展开过程,比均压法的更加接近于试验真实状态;通过增加侧气帘B柱﹑C柱导向支架,可引导气帘起爆的方向,避免气帘挤入内饰与车身的缝隙中,使侧气帘能够正常顺利地展开。 相似文献
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C. Ruff T. Jost A. Eichberger 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2007,45(10):953-967
The commonly used 'uniform pressure method' (UP) is a well-tried method to simulate an airbag deployment in accident cases. Nevertheless, this method indicates rather heavy inadequacies at the examination of the airbag deployment in the first milliseconds. A solution is the airbag deployment calculation by using computational fluid dynamics (CFD) methods, wherein the calculated gas flow pressure may be applied 'correctly' to the airbag shell elements.
This CFD simulation is integrated in LS-Dyna with the so-called Arbitrary Lagrangian Eulerian (ALE) method and in this review the result's accuracy will be discussed. According to the FMVSS 208, an OoP model will be built-on and comparisons with simulations and tests are done. Another important detail in this labour is the airbag cover examination and the tear seam modelling, as a trivial FE modelling cannot be done due to the very fine mesh. So two possible solutions for tear seam modelling are introduced and discussed. Furthermore considerations concerning the gas generator combustion will also be revealed and an analysis about the impossibility of the direct comparison between gas generator tank test and airbag deployment will be done. At least some parameters, which take effects in the simulation, are researched and evaluated, so finally an optimised simulation model can be made available for further examinations. 相似文献
This CFD simulation is integrated in LS-Dyna with the so-called Arbitrary Lagrangian Eulerian (ALE) method and in this review the result's accuracy will be discussed. According to the FMVSS 208, an OoP model will be built-on and comparisons with simulations and tests are done. Another important detail in this labour is the airbag cover examination and the tear seam modelling, as a trivial FE modelling cannot be done due to the very fine mesh. So two possible solutions for tear seam modelling are introduced and discussed. Furthermore considerations concerning the gas generator combustion will also be revealed and an analysis about the impossibility of the direct comparison between gas generator tank test and airbag deployment will be done. At least some parameters, which take effects in the simulation, are researched and evaluated, so finally an optimised simulation model can be made available for further examinations. 相似文献
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《JSAE Review》2001,22(1):69-74
In order to prevent injury of the occupant of the passenger seat when a side airbag deploys, we have developed an occupant position detection system. It detects the occupant's head entering the side airbag deployment zone. If so, the side airbag operation is inhibited and an indicator light on the side airbag alerts the occupant to the improper sitting position. It detects accurately the occupant's size and the head entering the side airbag deployment zone, using an occupant identification algorithm and electrostatic capacity sensors under the seat trim cover which determine the dielectric around the seat surface. 相似文献
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前翻式驾驶室支承方式虽平头车设计中十分敏感的技术,专门研究报导很少本文度图从驾驶室后支承方式,结构,振动的研究,提出支承方式和驾驶室系统受力关系及车身地板开裂问题之间的关系。 相似文献
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基于ADAMS软件,建立了某全浮式驾驶室重型卡车的整车非线性多体动力学系统模型,模型考虑了驾驶室悬置、前后悬架、转向系统、动力总成、稳定杆及附件的详细几何结构参数,以及连接处的橡胶衬套、弹簧及阻尼器的非线性特性,轮胎采用Magic Formula模型。最后利用所设计的系统对该车进行了平顺性仿真,结果表明驾驶室悬置系统能够有效地改善整车平顺性。 相似文献