Research on According Calculation of Hydraulic Resistance Coefficients for Recoil Brake of Gun Based on Improved Genetic Algorithm

Analyzing the reason why the working chamber pressure and interior chamber pressure have a large error between the traditional calculating result and the firing test result. Propose an indirect calculating method for the chamber pressure of recoil brake. According recoiling displacement of firing test, correct the hydraulic resistance coefficient that influence the inner pressure of recoil brake greatly through improved genetic algorithm based on self- adaptive operators. By the modified resistance coefficient, match the calculating result to the test. The calculating result of an example proves that the method can efficiently reduce the error and be more accurate. Furthermore, provide the important references to the structure improvement and the research on turbulence flow field of recoil brake.