Analysis Of Dynamic Response Of Test Projectile To Simulation Guidance Cannon Fuze Environment

Conventional munitions are gradually developing in the direction of intelligence.Guidance cannonballs are an important part of weapon intelligence.Guided artillery is a kind of high-tech artillery shell that adopts laser semi-active guidance.Such artillery shells usually have large caliber and high cost,and the cost of live firing of fuze safety tests is huge.Therefore,it is very important to design a pilot projectile of a guided projectile as a carrier to evaluate the performance of fuze so as to reduce the cost of the fuze range experiment.Designing guided bombs as a carrier for assessment of fuze performance requires the use of theoretical demonstrations and simulations to simulate the mechanical environment at which fuze are fired.The key problem needs to be solved by simulation test are to simulate the fuze overloaded environment,as well as analyze the modal and transient dynamics during the chamber period.The dynamic response of fuze based on of the gunshot test is researched,and the specific parameters and theoretical basis are provided for the guided missile fuze test.This article first uses the 122 mm standard grenade as a prototype,its structure has been improved and designed to meet the required test conditions,and a simulated test projectile of a guided projectile is drawn by Solidworks 3D graphics software,and the parameters of the test device are integrated at the same time.Analyze and install the fuze at different positions in the projectile.Then import the test bomb model into the Workbench software to simulate and analyze the ballistic environment of the projectile.Analyze the overload simulation of the fuze at different positions inside the projectile to determine the best fuze installed location.Finally,the modal analysis and the stress analysis of the fuze were carried out to explain that the guided projectile of the guided projectile can meet all the conditions required for the test.It can be used as a carrier to evaluate fuze performance and provide a theoretical basis for fuze testing.This paper provides a theoretical basis and design reference for the design of pilot projectiles for the evaluation of fuze performance.Simulation and analysis of the simulated test projectiles by finite element software not only saves the research and development costs of fuzes,but also accelerates the research and development progress and shortens the development cycle.It also reduced the severity of fuze test environmental conditions.Through simulation,the dependence of the test on the site was reduced,and the test cost was greatly reduced.The experiments conducted in this paper to assess the performance of fuzes can provide a design reference for the better realization of the mechanical environment of guided bomb simulation missile launch.