The Structure Optimization Analysis Of A Guns Cradle

Artillery gun cradle is an important component. The traditional cradle design method is generally in a simplified mechanical model based on the empirical formula to determine the components in accordance with section size, in order to ensure components with considerable stiffness and strength, plate thickness and wall thickness of rock shelves usually larger, overall quality is often large, not only a waste of more material, do not meet the requirements of lightweight gun. Aiming gun cradle requirements of lightweight construction, combined with domestic and foreign research methods and means of structural optimization design and lightweight technologies to a certain type of gun cradle for the study, based on their own characteristics and load characteristics of artillery cradle structure, mechanics finite element method based on the analysis of the recoil cradle during dynamic response simulation calculation and simulation, and through structural optimization design theory and methods cradle structure were optimized. Cradle structure optimized stiffness and strength not only be guaranteed, and the structure is more reasonable, lighter, reached a preliminary artillery cradle lightweight construction purposes.Firstly, the use of finite element analysis method on the basis of the analysis of the mechanical cradle recoil during the dynamic response of the simulation and numerical simulation, the cradle maximum stress and deformation under impact loading.Secondly, based on the finite element analysis for gun cradle reduce the mass, stiffness and strength to ensure that the design going, by topological optimization method, established a cradle unit density and rigidity to the design variables to cradle materials allowable stress and related manufacturing processes as constraint condition, the smallest model to optimize the objective function, cradle structure analysis to obtain a solution. Compared to the original structure, the optimized weight cradle obvious weight loss, stress distribution is more uniform, improved material utilization, achieve the purpose of lightweight.