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中文摘要：
提出了一种类似泡沫填充结构的轻质高吸能内部加筋薄壁梁的截面型式（加筋薄壁梁），采用数值仿真技术，以初始冲击力峰值、总吸能、比吸能为指标分析了该截面型式梁的抗弯性能。与同等质量的空心方形梁和泡沫铝填充梁进行比较，发现加筋薄壁梁的吸能性能（或比吸能）显著提高，同时初始冲击力峰值也有大幅下降，说明这种加筋薄壁梁是新型保险杠的良好截面型式。
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