Design And Analysis Of Ejection Test Verification System

For the specific ejection and flight conditions from the initial release of the missile to the ignition,the simulated missile test needs to be carried out in the laboratory.Therefore,a catapult test verification system that can meet the test requirements is designed.The system includes a fixed launcher module,a multi-function transport device module,an ejection recovery device module,and a trajectory tracking analysis software module.The key structural design is researched through the above.Firstly,based on the relevant data,the composition of the ejection test verification system is analyzed.The design index requirements of key modules are discussed.The key module structure design and analysis methods are clarified.Secondly,based on the current development status and design,the finite element model is built by ANSYS Workbench.Static analysis is carried out on the fixed launching device,the multi-functional transport device and its key components and the ejection recovery device.According to the analysis results,the structural strength of each module is checked for safety factor.Based on the modal analysis theory,the modal analysis of the frame of the multifunctional transport device is carried out.The relationship between the excitation frequency and the natural frequency of the frame is analyzed to avoid resonance.According to finite element analysis and safety factor checking results,a fixed launcher for missile ejection testing and installation is designed by Solid Works.Combined with the working principle of the linkage mechanism,translation mechanism,lifting mechanism and rolling mechanism,a multifunctional ballistic device which can realize steering,translation,lifting and rolling functions is designed.The balance mechanism is used to realize the anti-rollover function of the sliding support beam,and the ejection recovery device for missile recovery is designed.Finally,in order to verify the correctness of theory and design and the overall performance of each module of the ejection system,the installation and debugging of each mechanical module is carried out.The verification process of each function of the multi-functional transport device module is elaborated.A joint adjustment test is carried out on the missile ejection test and trajectory tracking analysis software.The test results show that the ejection test verification system design meets the requirements of the index and the requirements for use.