Research on Multi-body Transient Heat Transfer and Stress of a High ROF Autocannon
In order to improve the probability of interception,increasing the firing rate is one of the key development directions of anti-aircraft artillery weapon systems so that more projectiles can be fired to the target area per unit time.However,the thermal effect caused by high rate-of-fire(ROF)firing in turn affects the efficiency of multi-body critical components in the action and ultimately affects firing safety.In order to improve the firing rate and shooting safety of high ROF auto-cannons and solve the problem of thermal effect affecting the life of its key parts,it is necessary to study the transient heat transfer and stress change of multi-body key parts of high ROF auto-cannon actions.Taking a rotating-chamber high ROF auto-cannon as the research object and using the transient heat transfer theory,the heat transfer model of key parts of the automaton was established,and the simulation study of multi-body transient heat transfer and stress change was carried out by using finite element analysis software ANSYS Workbench.The simulation results show that with the increase of firing frequency,the defor-mation and temperature of key parts increase sharply,which will eventually cause multi-body compo-nent motion interference that affects shooting safety.The simulation results can provide theoretical sup-port for the design,operation and maintenance of actions.
heat transferhigh rate of fireauto-cannonmulti-body key partsrotating chamber
万方数据
维普
