膨胀管分离装置中分离板材料参数引起的减冲击特性

Shock Reduction Characteristics Caused by Material Parameters of Separation Plate in Super<sup<*</sup<Zip Separation Joint

摘要: 膨胀管分离装置是一种典型的线式火工分离装置，针对膨胀管分离装置中分离板的破坏应变和屈服强度两个材料参数对减冲击的影响问题，采用LS-DYNA流固耦合算法对其进行了仿真分析.结果表明：分离板的破坏应变和屈服强度对分离系统的冲击影响都较为敏感，破坏应变增加和较少25%时，系统冲击分别为初始状态的163%和61%；屈服强度增加和较少20%时，系统冲击分别为初始状态的150%和87%.

Abstract: Super*Zip separation joint is a typical linear pyrotechnic separated device.This article focuses on the influence on shock reduction of failure strain and yield strength of the separation plate.The numerical simulation analysis was made using the LS-DYNA fluid-solid coupling algorithm.Results show that the shock response of the separation system is quite sensitive to failure strain and yield strength of the separation plate.Specifically,shock response of the separation system is 163% and 61% of the original state when failure strain is 125% and 75% of the origin parameter,while it is 150% and 87% of the original state when yield strength is 120% and 80% of the origin parameter.