Performance Analysis of Front Bumper under Frontal Low Speed Impact
Abstract: In this paper, the front bumper of a certain model was simulated and analyzed in low-speed frontal collision. HyperMesh software was used as the pre-processor, LS-DYNA was submitted for simulation calculation, and HyperView was used as the post-processor to view the output results, so as to analyze the performance of the automobile front bumper in low-speed frontal collision. At the same time, the influence of different beam thickness on collision performance is compared under the same condition, which provides an effective reference for subsequent bumper optimization and design.

1. 引言

2. 有限元模型的构建

2.1. 前保险杠有限元模型

2.2. 前保险杠有限元网格划分

2.3. 材料属性定义

2.4. 边界条件的设定

3. 有限元仿真分析

3.1. 碰撞变形分析

(a) t = 0 s (b) t = 0.06 s (c) t = 0.08 s (d) t = 0.1 s

3.2. 碰撞能量分析

3.3. 碰撞位移分析

(a) t = 0 s (b) t = 0.02 s (c) t = 0.04 s (d) t = 0.06 s (e) t = 0.08 s (f) t = 0.1 s<

3.4. 碰撞加速度分析

4. 横梁厚度对碰撞性能的影响分析

4.1. 碰撞内能比较

4.2. 碰撞变形比较

(a) 横梁厚1.8 m (b) 横梁厚2 mm (c) 横梁厚2.3 mm

5. 结论

Cite this paper: Wang, Y. (2021) Performance Analysis of Front Bumper under Frontal Low Speed Impact. Open Access Library Journal, 8, 1-12. doi: 10.4236/oalib.1106982.
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