侵彻引信过载等效缩比试验方法

Penetration Fuze Overload Equivalent Scaled Test Method

在侵彻引信的研制过程中,受试验条件和试验成本的限制,缩比试验成为验证引信起爆控制策略、考核引信抗冲击性能的重要方法。针对目前引信等效缩比理论不完善,不能有效指导缩比试验设计的现状,以过载等效为原则,结合典型弹引系统等效模型和侵彻阻力模型,提出在侵彻有限厚混凝土靶工况下引信的缩比方法。以300 kg战斗部为原型弹、155 mm弹为缩比弹进行等效缩比方法验证,通过模型优化,最终引信过载峰值相差4.9%,脉宽相差5.6%,缩比弹与原型弹引信过载相似度较高,证明了该等效缩比方法的有效性。

In the development process of penetration fuzes,due to the limitations of test conditions and test costs,scaled tests have become an important method for verifying the detonation control strategy of fuses and assessing their impact resistance performance.In response to the current situation that the equivalent scaling theory of fuzes is not yet perfect and cannot effectively guide the design of scaling tests,based on the principle of overload equivalence,combined with the equivalent model of typical missile guidance systems and penetration resistance models,a penetration fuze scaling method based on the missile guidance transfer function was proposed.The equivalent scaling method was validated using a 300 kg warhead as the prototype projectile and a 155 mm projectile as the scaled projectile.Through model optimization,the final fuze overload peak value difference was 4.9%,and the pulse width difference was 5.6%.The similarity between the scaled projectile and the prototype projectile s fuze overload was high,proving the effectiveness of the equivalent scaling method.