Research on rotational angular velocity of preformed fragments

Abstract The rotational angular velocity of fragments under the driver explosive products makes constantly flip during trajectory, which has a huge effect on decay fragments. In order to more accurately calculate residual flight, it is necessary study Based paper target system, an experimental method for measuring proposed. By using ANSYS/LSDYNA finite element software, preformed explosion studied. A new meshing proposed simulate driven process accurately. results and numerical simulation are considered be consistent within margin error. And at last, distribution fragment studied base simulation. research provide foundation studying trajectory after driven.