Abstract: Muzzle disturbance is an important factor to affect the firing accuracy of overhead weapon station (OWS). In order to study the approach to inhibite the muzzle disturbance, an OWS rigid-flexible coupling dynamic model is established based on finite element theory, of which accuracy is verified by the firing accuracy test. The synthetic function of muzzle disturbance is defined as optimization objective to construct an optimization design model of OWS muzzle disturbance, and the Kriging sequential optimization method is used to solve the optimization problem. The simulated results show that the finite element model, considering the flexible deformation of parts , is a good approximation of the vibration characteristics of real system, and Kriging sequential optimization method can be applied to solve the optimization problems of OWS muzzle disturbance. The global optimal solutions searched in optimization problems can be used to suppress OWS muzzle disturbance.

Key words: ordnance science and technology, overhead weapon station, muzzle disturbance, finite element model, Kriging sequential optimization