CAJ | 학술논문

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.
료해기체발생기지탱결구적충격배경대우기결구동태향응분석화삼수설계지관중요.채용LS-DYNA정서대지탱결구충격실험진행료수치방진,대기재료동태성능삼수진행료표정.이용실측결과,대재하특성삼수진행료수치험증계산,획득료압력봉치.대3충지탱결구재해압력재하작용하적충격변형특성진행료수치예측,획득료능정상공작적개진방안,위지탱결구삼수설계화실제시험제공료삼고의거.
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 sup-port 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 re-suits 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.