Dynamics Modeling And Simulation Of A New Type Of Automatic Weapons

With the development of military technology, crew-served weapon have become the critical part of new age light weapons. As "decreasing the types sharply and increasing the efficiency" is one of the main development trends in this kind of weapons. This thesis introduces a new crew-served weapon and has dynamic simulation by virtual prototype technology on it.This thesis introduces the development condition of crew-served weapon in and abroad, analyzes the structural characteristics and working theory of movable two-way feed mechanism thoroughly, conforms the whole design idea for such two-way feed mechanism and realizes three dimensional modeling & total assembling using PRO/E. The model is transferred into the ADAMS by the interface module of ADAMS and PRO/E. After that the virtual sample of certain type of new automatic weapon is established and the inner bomb units of shrapnel are gained. Through the simulation of such virtual prototype model, the basic kinematics and dynamics characteristics of the automatic mechanism and two-way feed mechanism are proposed with the confirmation of proper structure and good matching for two-way feed mechanism and automatic mechanism. On these foundations, influences and optimization of gas transferring devices, curve-like groove of the gun frame, mass and recoil check spring to the kinematics characteristics of the automatic mechanism and two-way feed mechanism are discussed by defining the components parameters, moving restrictions, loads and so on. It may be a good reference for further study and improvement for this kind of weapon prototype.