.23 Mm Experimental Gun Super-charge Trial Design And Analysis

The background of this dissertation is about the Acceleration Life Testing (ALT) of gun. The aim of this dissertation is to find the charge amount of the 23mm test-gun when it attain or near its utmost state and insure the gun firing testing proceeded successfully and safely in the condition of exceeding charge amount.Firstly, a 3-D model of the test-gun was established in I-DEAS and getting some relative dynamic parameters from it. Following, the internal ballistics of the gun is studied and the internal ballistics simulation model was designed through MATLAB\Simulink. The model was identified by adjusting some relative parameters until the simulation data in according with the testing data.And then, the virtual prototype software (ADAMS) was used to set up the dynamic model of test-gun, integrating with internal ballistics data and the FORTRAN calculating code of recoil system, to analysis the dynamic course and gain the gun's response. The same as before, the dynamic model was validated by comparing the simulation result with the test data.Finally, the stress intensity of main supported construct parts was verified by using finite element method to make sure that the 23mm test-gun firing test can be proceeded in the condition of exceeding charge amount.Simulation under several amounts of charge was processed and many important simulation data attained. These data can forecast some case which would be appeared in the later test and instruct the progress of test.Compared with the data got from the simulative models and the original test data, it verified that all the models in the dissertation were basically correct, and the system error is under the range of permission. It also verified that the result has guiding meaning.