Method of Firing-table Compilation Based on Precise Ballistic Measurement

Abstract

It is a long-term problem to consume a lot of ammunition and test cycle in firing table test. According to the theory of rigid body trajectory,a six-degree-of-freedom trajectory differential-equation for projectiles and rockets was established,and the sensitivity analysis of flight data on each aerodynamic parameter was carried out. By simulation calculation,the accurate identification method of aerodynamic parameters and the calculation method of full trajectory coincidence were studied,and a new method of compiling firing table based on precise ballistic measurement was preliminarily formed. The results show that the new method can accurately identify the aerodynamic parameters of the projectile,and the calculated trajectory is more consistent with the actual trajectory,which can better reflect the real flight state of the projectile. The research results lay a theoretical foundation for changing the problems of large test consumption and long test period,and further improving the accuracy and compling technology of the firing table.