A Special Mechanical Systems Of A Number Of Key Technologies

This paper takes a certain military multiple warhead rifle as the research object. Based on the analysis of abundant information, a new design concept of the multiple ring warheads is proposed combining the advantages of ring warhead and multiple warheads. The ring warhead has a series of outstanding performances. Applying the ring warheads technology to multiple warhead rifle, the hit probability of the warheads is improved depending upon the dispersion formed by the multiple warheads.Under the premise of some appropriate basic assumptions and simplifications concerning the construction performance of military multiple warhead rifle, a 3-D mathematical model of the military multiple warhead rifle has been set up based on the classical theories of internal and external ballistics, weapon aerodynamics and multi-degree rigid-body kinetics. On the basis of mathematic modeling, the general simulation and optimization program of multiple warhead rifle has been compiled by VB language, which can accurately simulate the whole trajectory launching procedure, and meet the demands of CAD better.Simulation calculation on the performances of in-bore pressure, mechanism movement and external trajectory, during the shooting of the military multiple warhead rifle, is made. Having discussed and analyzed the simulation results, several parameters which greatly influence the general performance of the military multiple warhead rifle are found out. The design is optimized using compound method; and ultimately several groups of optimization results are given out in a specific example, which give some valuable referenced data and offer a theoretical foundation for the design and improvement of the multiple warhead rifle. The research results of this paper have certain valuable instruction functions for the development of new generation multiple warhead weapons that will adapt to the modern war environment better.