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Journal of Projectiles, Rockets, Missiles and Guidance >

2023 , Vol. 43 >Issue 5: 54 - 57

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.05.008

A Method for Calculating Scattering Angle Based on Partial Power Test Data

  • LI Hongjiang ,
  • CAO Tao ,
  • HU Pengshun ,
  • CAI Chenchen
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  • No.63876 Unit,Huayin 714200,Shaanxi,China

Received date: 2023-06-06

  Online published: 2024-12-30

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Abstract

In order to study a method for calculating scattering angle based on partial power test data.A killing and blasting projectile was used as a sample.Breakage test,fan-shaped target test and static scattering angle test were carried out.The mass distribution data of the projectile fragment,the killing radius data of the breakdown fragment and the static scattering angle data are obtained.The final velocity and flight distance of fragments of different mass levels were calculated.Fit the curve of fragment flight distance and fragment number.The relationship between the static scattering angle and the killing radius data of the breakdown fragment was established by the kill density.Calculate the theoretical value of the static scattering angle based on partial power test data.The results show that the theoretical values are in good agreement with the experimental values.Difference of about 2.2%,The reason may be that the value of fragment shape factor is a little too large.If the fragment shape factor is 5.0,the fragment flight distance of the same quality grade will be reduced by 13.1%-38.7%.And the greater the mass of the fragments,the greater the influence of distance. If the fragment shape coefficient is determined according to the proportion of different shapes,the theoretical calculation will be more close to to the test.

Key words： killing radius of the breakdown fragment; static scattering angle; mass distribution data of fragment; kill density

Cite this article

LI Hongjiang , CAO Tao , HU Pengshun , CAI Chenchen . A Method for Calculating Scattering Angle Based on Partial Power Test Data[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2023 , 43(5) : 54 -57 . DOI: 10.15892/j.cnki.djzdxb.2023.05.008

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