Identification of Certain Artillery Kinetic Parameters by Limited Memory Least Square Method

This paper is concerned with the identification problem of certain artillery kinetic parameters during firing. An artillery’s model can be simplified as three rigid body structure joined by a prismatic pair and a revolute pair. The unrestraint dynamic equation of the artillery can be obtained by using multi-rigid-body theory. In order to acquire unknown kinematics parameters, such as displacement, velocity and acceleration, a field experiment was designed. Then by choosing limited memory least square method and using the experiment results, the mass of rigid body could be identified. Finally, the calculative mass was compared to the “real” mass which was consulted in artillery specification book. The whole process shows that the artillery rigid dynamic model and the method of identification are both effective.