| Improving the initial velocity has been the key to the research of interior ballistics. Based on the technological routing of traveling charge to promote the muzzle initial velocity, this thesis studied mainly about the effect of ignition delay and traveling propellant burning rate on properties of interior ballistics, from the standpoint of optimal design of interior ballistic. The main studies are as follows:(1) Interior ballistic model of solid traveling charge was built and numerical simulation for traveling charge of 150mm gunpowder was carried out. Finally the result showed a good consistency of the counting and experiment results. Based on it, the impact of ignition delay and traveling propellant burning rate was analyzed on gun pressure and initial velocity in the thesis.(2) Two models of genetic algorithms(GA),i.e. GA with penalty function method and GA of controlling the second pressure point, for the optimal design of solid traveling charge of 150mm gun were adopted and made an optimal program. Finally we got a better optimal result than the experiment results by the optimization.(3) Simulated annealing algorithm model was built and programmed. Traveling charge of 105mm gun was made an optimal analysis. Finally we got better p-t curve and the projectile initial velocity of fixed maximize gun pressure.(4) The thesis made a further optimal analysis of 105mm solid traveling charge with the AI software ISIGHT, and compared it with two optimal models mentioned above. The conclusion showed that all three results of optimization got much similarity and very close to the globally optimal solution. The results indicated that GA, simulated annealing algorithm and ISIGHT software were proved to be effective in the optimal design of interior ballistics with traveling charge. |
