Finite element analysis of strength under high overload conditions of 25 mm caliber fuze
For the strength safety problem of small caliber fuze,the strength finite element analysis of fuze parts under high overload condition is completed.The 3D modeling,working principle and force analysis of a 25 mm small diameter fuse are completed;To realize the strength finite element analysis of fuse key components,the material properties of fuse components are determined and the model is simplified.Use Hyper Mesh for grid division,connection relationship setting and high overload working environment(backseat overload 70 000g and speed overload 30 000 r/min),the stress distribution and deformation in the condition of high overload.The simulation analysis showed that the maximum stress is 87.69 MPa and 292.51 MPa respectively.When the speed load loads,the explosion isolation mechanism removes the insurance,and the centrifugal rotor is rotated 44.395 degrees under the action of centrifugal force,so that the ignition hole and strike are positive,ensuring the normal work of the fuse,and the strength of the fuse parts meets the emission safety requirements.
small caliber fuzestrengthhigh overloadfinite element analysisstress distribution
NETL
NSTL
万方数据
