| The domestic and overseas research background and trend of small caliber non-gunstock automatic weapon is introduced in this paper, and the structure of Model 95 squad-equipped scatter-gun is analyzed in detail.The 2D mathematics model of 95 squad-equipped scatter-gun is firstly built up on the basis of classical interior ballistics theory, weapon aerodynamics theory and multi-degree rigid-body kinetics theory. The firing stability of the scatter-gun is calculated in the whole process by the first time, which can be the theoretical foundation for further automatic weapon design.Base on the mathematics model, the universal dynamics software is developed. Through the man-machine interactive interface, the influence of every factor on the performance of the scatter-gun can be analyzed conveniently and promptly. At the same time, the result can be outputted as tables or curves.Taking six factors as optimization variable, optimization calculation is made to increase gunpoint momentum and decreasing recoil. Furthermore, the ameliorative scheme of decreasing recoil is provided in this dissertation. |
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