MODELING AND SIMULATION STUDIES FOR ADVANCED TOWED ARTILLERY GUN SYSTEM

摘要

Ever increasing needs of modern artillery for increased range, accuracy andautomation led to a new Towed Artillery Gun System (TAGS) development byDefence Research and Development Organisation (DRDO), Ministry of Defence(MoD), India. Modeling and simulation studies were carried out, to determine theessential ballistic performance parameters are presented here. Various subsystemconfigurations involving existing, modified and evolving technologies werestudied so that a suitable design configuration is identified for development of thegun system. The adopted approach assumes possible near-time and far-timerealization of each constituent & contributing subsystem’s maximal performance.The overall emphasize has been on realizing a weapon system, which fairlymatches the performance dictated by the systems world-wide at the lower end ofthe operational spectrum and would also offer enhanced performance at its higherend. Comparable performances have already been demonstrated for ammunitionsystems like M90 Modular Charge System (MCS) and Extended Range Full Bore(ERFB) class of projectiles. Further enhancement to performance is expectedwith alternate charge designs and/ or process-modified ammunition systems.Future enhancements to range performance is likely to be realized with ongoingdevelopments in projectiles, charge systems and Course Correction Fuzes (CCF).System studies with modeling and simulation for subsystem analysis &evaluations have resulted in a base-line parameter set. A solution with reducediterative design & development life cycle has been conceived and had beenrealized. 155mm/52 cal Advanced Towed Artillery Gun System (ATAGS),realized with base-line design parameters has successfully demonstrated muzzlevelocities of order ～1010 m/s with seven Higher Zone (HZ) M92 modules ofM90 MCS at ambient Mean Sea Level (MSL). This has lead to enhanced rangesof +35km and +45km with ERFB-Boat Tailed (BT) & Base Bleed(BB) shellsrespectively, against 29km & 39km with six HZ modules of MCS for comparablesystems world-over. Further enhancements with CCFs and Velocity enhancedArtillery Projectiles (VLAP) are being attempted to realize a range of +60kmwith increased accuracy.