Abstract: Stochastic process of overload during the course of fuze launching is discussed in detail, an algorithm, which can simulate fuze launching overload in any temperature based on the principle of information diffusion in fuzzy theory, is also presented. The calculated theoretical overload is disposed by white noise to approach actual launching overload. At last dynamic test is used to calculate the fuze response for launching overload. So the actual fuze launching overload can be simulated in the computer, and the program of stochastic process of overload is designed based on the idea. To test the validity of the algorithm and the program, launching overload of a howitzer fuze is simulated. The result is found basically to be in accord with actual launching overload of fuze, the purpose of the research is achieved.

Key words: Fuze, Gun pressure, Overload