Design and simulative analysis of energy absorption device based on sandwich structure with aluminum foam core
TANG Jin-Yuan, PENG Fang-Jin
Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing （Central South University）,
Ministry of Education, School of Mechanical and Electrical Engineering, Central South University,
Changsha 410083, China
Abstract Sandwich structure with aluminum foam core was applied in large-shock-energy absorption device and its design method and steps were presented. A new protecting device of free-sliding in skew mine which could absorb 2.232 MJ energy was developed. Crashing simulation analysis on this device by LS/DYNA found that aluminum foam was steamed roller layer by layer and had good performance in absorbing energy. During the shock process, instant energyabsorption velocity would increase with the aggravation of aluminum foam core deformation and the enhancement of structure strength, and the conglutination of sandwich structure was broken．
TANG Jin-Yuan, PENG Fang-Jin. Design and simulative analysis of energy absorption device based on sandwich structure with aluminum foam core. Chinese Journal of Engineering Design, 2009, 16(3): 191-195.
