Research On The Key Technology Of Tank Gun Multi-purpose Bomb

With the diversified development of tank gun target characteristics,Diversified operations model has become the main battlefield of modern combat mode,Our army bomb active tank gun main equipment is still the penetrators,armor piercing shells,grenades and assault four kinds bomb,each can only guarantee the specific operational function,cause the current tank gun ammunition can not fully adapt to the ever-changing battlefield needs under the new situation,Has important significance for the development of military tank gun multi-purpose bomb.The article carried out investigation and research through the development status and level of domestic and foreign tank gun multi-purpose ammunition,According to the ballistic characteristics of tank gun,In order to ensure the projectile has good external aerodynamic forceThe shape and stability of the overall structure scheme of long-distance flight,multi-purpose bomb using oval head screw head and tail shape before Zhang stable structure.Based on the analysis of tank gun threat,The multi-purpose bomb should have a piercing function,killing function(prefabricated fragment penetration),The crucial function and function.According to the analysis of arson the different characteristics of target protection capability,The power indicator multi-purpose bomb four functions:(1)The penetration power:static penetration of 630mm;(2):The lethality of 15m of position 12mm fragment penetrating thick armor steel fragments on average;Crowded killing radius of not less than 25m,The lethal area not less than 2000m~2;(3)The crucial power:Projectile penetration to 500mm thick reinforced concrete or 12mm thick homogeneous armor steel;(4)Fire power:Intensive coverage radius of not less than 25m.according to the power index to determine the lethality of the penetration power,power and power,Tackling arson was designed by engineering calculation method of simulation analysis and verification test to verify the correctness of the four power structure design.The engineering calculation and simulation results:(1)The penetration power engineering calculation:The penetration of 680mm,Simulation analysis of wear depth is 812mm;(2)Lethality:Muzzle velocity of preformed fragment 1344.41m/s,Fragment velocity the target speed of 15m is 1189.15m/s,The limit penetration velocity is 1047.21 m/s,The target speed is greater than the limit penetration velocity;Fragment dense kill radius is28m;(3)Critical power:Engineering calculation of wear depth is 573mm,The simulation analysis of wear depth is 600mm;(4)Arson power:Engineering calculation intensive coverage radius 28.16m.Test results:Penetration wear depth is 816mm;The average velocity of fragment lethality was 1374.75m/s,The average speed is 1230,The remainder of the average speed is 260.95 m/s,The average residual energy of 273.15J fragment;Dense kill radius 27.9m,killing intensive area of 2445.45 m~2;Critical power:Multipurpose projectile penetration of 500mm thick reinforced concrete or 12mm thick homogeneous steel armor,The target after frying function.Through the research on the key technology of multi purpose bombs,The technical feasibility of the general structure plan of multi-purpose bomb to make a preliminary evaluation.