Simulation And Experimental Research On Artillery Firing Impact Simulation Waveform Generator

In the live-fire test to assess gun weapon system performance, there are still somedeficiencies to restrict the process of combat effectiveness of artillery weapon system,such as very high test cost, too long test cycle and some performance parameters hard tocheck. Artillery fire simulation test technology can well solve these problems. Therelated theoretical research about gun shooting simulation test obtained some progress.At present, the simulation technology of the engineering application of the howitzer issmall. The purpose of this project is to develop a shock wave generator, which canapproximate the movement of artillery recoil system under the muzzle strong impact. It isone of the key technologies and main difficulties in guiding development of artilleryfiring impact simulation test system, which is to provide technical support for relatedsimulation test method and total project completion.The launch dynamics characteristics and the recoiling movement rule of a certainlarge caliber artillery was analyzed. The dynamics equation of artillery firing includingartillery force equation and interior ballistic equations was set up. By comparing the testresults of the numerical simulation test with those of the live firing conditions, paper hasverify the correctness of the numerical simulation model. By analyzing the physicalprocess of hyperelastic material and the working principle, characteristics in the shockbetween the high quality of muzzle and the howitzer, using the knowledge of impact test,it has selected suitable approximate shock waveform and generator structure to establishthe mechanical model of the impact and stiffness calculation method of waveformgenerator. Waveform generator and the preliminary design of simulate impact test havebeen presented according to the model.Based on MSC_DYTRAN, the virtual cannon test platform has been developed, tocarry out the research on waveform generator structure design scheme by the method ofuniform design of experiment. The technical indicators waveform generator design andsimulation of impact test has been found by comparing with the live firing data, whichmeets the requirements of test. Waveform generator has been designed and processed,which has been used in firing impact simulation test system to impact test of a certainlarge caliber gun. The parameters about the movement of artillery recoil have beenobtained. Through the comparison of simulation test and the live firing test results, paterhas verify the rationality on the design scheme of the shock waveform generator and thevalidity of the simulation test, which has determined that the waveform generator designand processing could meet the requirements of the artillery firing simulation impact test.