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根据振动剂量值 (VDV)隔震标准 ,采用 Runge- Kutta法研究了双层线性隔震系统在核爆炸产生的两类冲击震动作用下的隔震性能。分析结果表明 ,当下层质量弹簧系统的自振频率约为 1Hz时 ,双层隔震系统具有较好隔震效果 ;当下层质量弹簧系统的自振频率为 3Hz时 ,双层隔震系统只在部分参数取值上具有隔震性能。
According to Vibration Isolation Vibration (VDV) isolation criteria, Runge-Kutta method is used to study the isolation performance of two-tier linear vibration isolation system under two kinds of impact shocks caused by nuclear explosion. The analysis results show that the double-layer isolation system has a good isolation effect when the natural frequency of the lower-level spring system is about 1 Hz. When the natural frequency of the lower-level spring system is 3 Hz, Some parameters on the value of isolation performance.