Study Of Simulation And Assessment Of The Interaction Between Typical Small Arms Ammo And Target

In Modern Warfare,Small arms are widely used and it will be one of essential weapons in multi-united arms even in future integrated joint operation.Bullet is the most fundamental ammo of small arms used to kill living aims.It has the guidance meaning for the treatment of war wound and optimization of bullet performance to simulate and assess the damage effect effectively.For now,there are still some deficiencies in the study of the interaction between typical small arms ammo and target in aspect of basis theory,experiment,simulation,effectiveness assessment and the establishment of related system platforms,which can’t meet the requirements of rapid develoapment of bullets.So it is of great significance to carry out the study of the construction of system platform and related key techniques of damage effect simulation and assesment of kill element.The main contents are indicated as follows:In order to reduce the difficulty and improve the efficiency in the simulation analysis of gelatin penetrations of projectiles,a parametric modeling method was studied based on APDL and Visual Basic.And the influence of bullet parameters on the damage effect was analyzed based on the method.Change of the effectively wetted area of bullet is studied in the penetration progress.New frameworks dependent upon the angle of incidence are proposed for drag and lift coefficients by introducing an area detached ratio and the influence of slenderness.Further,a new motion model of rifle bullet is established based on the proposed frameworks.Considering the relation of behavior and energy transferred of bullets,a motion model of gelatin temporary cavity was established based on the new motion model of rifle bullet.The new frameworks and both motion models were verified by comparison with the results from experiment data and simulated results of FEA.An advanced voxel model based on the Chinese Visible Human(CVH)data was built.And a digital human vulnerability model was established based on the voxel model in combination with the method of wound representation,establishment of vulnerability assessment rules and a human vulnerability assessment method.Effectiveness evaluation method of kill element based on the a digital human vulnerability model was proposed and solved by Monte Carlo sampling method,in which the human voxel model was treated as the simulation target.The ontology technology is introduced into the field of human vulnerability assessment and a knowledge-based vulnerability assessment method was proposed in combination with SWRL rules and Jess reasoning.The feasibility and effectiveness of the proposed methods and models are verified by example analysisTo discover quickly and exactly the useful information and knowledge from the historical data for the realization of the prediction of the damage effect,a new method based on data mining was proposed,which has the unique advantage in unknown knowledge acquisition,and a mining algorithm model was established based on the K-Means clustering algorithm and fuzzy association rule mining algorithm.The effective association rules of bullet penetratin soap were acquired based on the new proposed method and verified by comparison with the testing data.Effectiveness Simulation and Assessment System of Small Arms Ammo,ESAS-SAA,was designed and developed.The framework,overall structure and function model of ESAS-SAA were introduced and the detailed design and implementation of the main modules were discussed.