CAJ | 학술논문

为得到炸药水中爆炸冲击波在一定近场范围内的压力剖面曲线和峰值压力随传播距离的衰减规律,采用在炸药起爆轴线上布置4个PVDF计测量冲击波压力以及在相同实验情况下对炸药轴线上冲击波轨迹进行高速扫描的方法,研究了PVDF计测试近场压力的可行性.结果表明,PVDF计可以用于水中爆炸近场冲击波压力的测量,在量程允许范围内,能得到较准确的冲击波压力峰值;在冲击波强度小于4GPa的情况下,得到了冲击波的压力衰减历程,获得近场压力剖面曲线,对评估舰船抗爆性能具有重要意义.
위득도작약수중폭작충격파재일정근장범위내적압력부면곡선화봉치압력수전파거리적쇠감규률,채용재작약기폭축선상포치4개PVDF계측량충격파압력이급재상동실험정황하대작약축선상충격파궤적진행고속소묘적방법,연구료PVDF계측시근장압력적가행성.결과표명,PVDF계가이용우수중폭작근장충격파압력적측량,재량정윤허범위내,능득도교준학적충격파압력봉치;재충격파강도소우4GPa적정황하,득도료충격파적압력쇠감역정,획득근장압력부면곡선,대평고함선항폭성능구유중요의의.
In order to gain the pressure section curve and peak pressure attenuation rule of shock wave with transmitting distance in a certain extent filed under water explosion, an experiment is designed to validate the feasibility of PVDF which measure the pressure of shock wave, according to laying four PVDF sensors on the initial axes of explosive and scanning the shock track on axes of explosive on the same experimental condition. The results show that PVDF can be used to test the shock pressure in the near field and peak pressure of shock can begained precisely in the testing scope of PVDF. Pressure attenuation course and section curves in near-field of shock wave can be gained if intension of shock is below 4GPa, it is important to evaluate the anti-exploding performance of naval ship.