佳木斯大学学报：自然科学版
佳木斯大學學報：自然科學版
가목사대학학보：자연과학판
Journal of Jiamusi University(Natural Science Edition)
2011年
6期
801-805
,共5页
碰撞%泡沫铝%试验%仿真%LS-DYNA
踫撞%泡沫鋁%試驗%倣真%LS-DYNA
팽당%포말려%시험%방진%LS-DYNA
crash%aluminum foam%experiment%simulation%LS-DYNA
采用非线性有限元LS-DYNA软件仿真与试验两种方法,研究了泡沫铝填充件对薄壁圆管碰撞稳定性的改善.首先,根据碰撞力要求,设计选择了薄壁圆管及泡沫铝填充件各参数;通过样件试验与有限元仿真计算,两者获得了较为一致的结果,从而证实了设计的合理性及非线性有限元仿真的可行性.最后,把上述结果应用于列车被动安全装置防爬器的碰撞仿真中.
採用非線性有限元LS-DYNA軟件倣真與試驗兩種方法,研究瞭泡沫鋁填充件對薄壁圓管踫撞穩定性的改善.首先,根據踫撞力要求,設計選擇瞭薄壁圓管及泡沫鋁填充件各參數;通過樣件試驗與有限元倣真計算,兩者穫得瞭較為一緻的結果,從而證實瞭設計的閤理性及非線性有限元倣真的可行性.最後,把上述結果應用于列車被動安全裝置防爬器的踫撞倣真中.
채용비선성유한원LS-DYNA연건방진여시험량충방법,연구료포말려전충건대박벽원관팽당은정성적개선.수선,근거팽당력요구,설계선택료박벽원관급포말려전충건각삼수;통과양건시험여유한원방진계산,량자획득료교위일치적결과,종이증실료설계적합이성급비선성유한원방진적가행성.최후,파상술결과응용우열차피동안전장치방파기적팽당방진중.
With two experiment methods and nonlinear finite element analysis（FEA） simulation with LS-DYNA software,this paper studied the effect of thin-walled pipe filled with aluminum foam on the stability of vehicle passive safety energy-absorbing device.First,the parameters of thin-walled pipe and aluminum foam were design and select based on the crash-force limitation.Then,an experiment was carried out and a CAE model was established on computer.It is proved that the two methods can get consistent results after comparative analysis.Last,the results were applied to vehicle passive safety energy-absorbing device anti-creeper.
