摘要
了解气体发生器支撑结构的冲击环境对于其结构动态响应分析和参数设计至关重要。采用LS-DYNA程序对支撑结构冲击实验进行了数值仿真,对其材料动态性能参数进行了标定。利用实测结果,对载荷特性参数进行了数值验证计算,获得了压力峰值。对3种支撑结构在该压力载荷作用下的冲击变形特性进行了数值预测,获得了能正常工作的改进方案,为支撑结构参数设计和实际试验提供了参考依据。
It is important for dynamic response analysis and parameter design to understand the shock environment of the support of gas generator. Numerical simulations for impact experiments of the support were investigated, and dynamic material parameters of the support were calibrated by use of LS- DYNA. Numerical calculations for parameters of loading properties were finished and validated by results of the actual trial run, which gets the peak value of pressure impulse. Numerical predictions for impact deformation of three types of the support under the validated pressure loadings were carried out. The improved design was presented to supply important references for parameter designs and practical tests of the support
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2009年第12期1753-1756,共4页
Acta Armamentarii
关键词
爆炸力学
冲击载荷
结构响应
数值模拟
explosion mechanics
impact loading
structure response
numerical simulation
