冲击波形发生器侵彻过程的数值模拟研究-机械工程专业毕业论文.docx

Abstract 硕士学位论文
results obtained show that the shape of the projectile has significant influences on acceleration ,the porosity and thickness of the aluminum foams,the velocity and the mass of the proj ectile have great effects on the peak acceleration and pulse width ofthe projectile.
111e parameter model of the projectile impacts the aluminum foam is established by
using the parametric modeling method in ANSA software,LSDYNA software and META software are integrated in ISIGHT software,the NSGA-II algorithm is used to optimize the acceleration peak and pulse width of the projectile.
The modeling method and simulation results in this paper have a certain reference value for the design of shock wave generator and the study of the mechanical properties of aluminum foams.
Key words:shock waves,buffer materials,aluminum foams,parameter optimization,
NSGA-II algorithm
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硕士学位论文 冲击波形发生器侵彻过程的数值模拟研究
目 录
摘 要 .I
Abstract..............................................................................................III
目 录 V
1绪论 .1
.1
.1
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一2
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一6
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2泡沫铝的力学性能分析 ..10
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3弹丸侵彻泡沫铝介质的数值模拟与实验分析 22
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一22
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目录 硕士学位论文
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3 1
4弹丸侵彻泡沫铝冲击波形影响因素的分析研究 32
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5弹丸侵彻泡沫铝冲击波形