CAJ | 학술논문

运用ANSYS／LS‐DYNA软件对弹体撞击高压气瓶的过程进行数值模拟，得到弹头形状、子弹质量和接触面积不同时子弹穿透高压气瓶的临界速度和临界动能，分析了不同因素对子弹撞击性能的影响。结果表明，弹头形状对穿透动能的影响不大；在接触面积相同的情况下，随着子弹质量的增加，其穿透瓶体的速度逐渐降低，而所需的穿透动能逐渐增大；子弹与瓶体接触面积越大，需要的穿透动能越大。
운용ANSYS／LS‐DYNA연건대탄체당격고압기병적과정진행수치모의，득도탄두형상、자탄질량화접촉면적불동시자탄천투고압기병적림계속도화림계동능，분석료불동인소대자탄당격성능적영향。결과표명，탄두형상대천투동능적영향불대；재접촉면적상동적정황하，수착자탄질량적증가，기천투병체적속도축점강저，이소수적천투동능축점증대；자탄여병체접촉면적월대，수요적천투동능월대。
The process of shrapnel impacting the high‐pressure gas cylinder was simulated using the ANSYS/LS‐DYNA .The critical velocity and kinetic energy of bullets penetrating through the high‐pressure gas cylinder at different nose shapes ,projectile masses and contact areas were obtained .The factors influencing bullet impacting characteristics were analyzed .Results show that the nose shape of bullet does not greatly affect the penetrating kinetic energy ;as the bullet mass increases ,the pene‐trating velocity gradually decreases and the needed penetrating kinetic energy gradually increases at the same contact area for the gas cylinder ;the larger the bullet contacts with the gas cylinder ,the greater the needed penetrating kinetic energy .