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轻型卡车驾驶室侧面耐撞性摆锤撞击仿真与改进

, PP. 120-126

Keywords: 汽车工程,碰撞安全性,有限元分析,轻型卡车,结构改进

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Abstract:

?为了提升轻型卡车的碰撞安全性,建立了某轻型卡车有限元模型,进行了驾驶室模态仿真以及100%正面碰撞仿真,并通过驾驶室模态试验与实车碰撞试验,验证了有限元模型的准确性。参照ECER29-03法规进行了侧面20°摆锤撞击仿真,并通过侧围顶部填充结构泡沫、增加顶部横梁和后围加强梁等措施对原设计驾驶室进行改进。结果表明:改进后驾驶室刚度得到提升,各部件能量吸收较均匀,生存空间最小尺寸由75.3mm增加为121.9mm,加强了对乘员的保护。

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