Application of genetic algorithm to calculation of detonation parameters

To solve the problems of bad convergence and to satisfy the strict requirement to initial conditions in the calculation of detonation parameters, a new calculation method was proposed based on the principles of chemical equilibrium and the method of minimum free energy by introducing the genetic algorithm, and the calculated results of typical explosives were compared with the experimental data to verify the validity and the accuracy of the new method. It is demonstrated that, by the new method, the calculated results of detonation pressure and velocity of the explosives correspond well with the experimental data with the errors under 5%, which can be applied to predict explosive properties. Also, the computational process is convenient with little manual intervention and entails only the verification of the moles variation form of the few major ingredients, which may be used for multi-formula optimization design.