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实践表明,在火炮的装药结构、点大条件和射击条件严格控制下,初速或然误差主要决定于火药身的性能.根据内弹道势平衡理论,该文从理论上证实了初速的散布与火药在爆发器中的燃烧不均一性参量∑’/(1—∑’)成正比,其中∑’= 误差主要决定于火药本身的性能.根据内弹道热平衡理论,该文从理论上证实了初速的散布与火药在爆发器中的燃烧不均一性参量∑’/(1—∑’)成正比,其中∑’=Γ_0/Γ_0为p～t曲线拐点前,火药的平均燃烧猛度与初始燃烧猛度的比值.进而建立了初速或然误差的密闭爆发器模拟方法,经实际验证,该方法准确可行.
The practice shows that the initial velocity error depends mainly on the performance of the firearm under the control of the gun’s charge structure, point conditions and shooting conditions.Based on the theory of internal ballistic potential equilibrium, this paper theoretically confirms the distribution of initial velocity and The ignition of gunpowder is proportional to the combustion inhomogeneity parameter Σ ’/ (1-Σ’), where Σ ’= error mainly depends on the performance of gunpowder itself. According to the internal ballistic heat balance theory, this paper theoretically confirms the initial velocity Is proportional to the combustion inhomogeneity parameter Σ ’/ (1-Σ’) of the explosive in the explosion, where Σ ’= Γ_0 / Γ_0 is the average combustion fury of the powder prior to the inflection point of the p ~ t curve and the initial combustion The ratio of the bounce rate and the bounded burst rate of the initial rate error is established, and the method is proved to be accurate and feasible.