Optimal design method of grooved shelling template

Abstract

The invention discloses an optimal design method of a grooved shelling template. According to the method, an optimal topological structure is determined in the stage of conceptual design based on a technical scheme of combining structural optimization of a finite element method and numerical analysis, and a grooving clearance and a thickness of the optimal topological structure are determined according to absorption energy in the stage of detailed design, so as to ensure a shelling template structure with an optimal topological structure and lowest weight. Compared with the conventional design, the optimal design method has the advantages that the weight can be reduced by about 30 percent on the premise of meeting the intensity, and the impact force can be absorbed to the maximum extent. The grooved shelling template designed by the method disclosed by the invention is high in shock absorption performance and low in impact, so that the operation steadiness of a shelling system is improved. The optimal design method can be also used for the structural design of other grooved products for absorbing the impact.

Description

technical field [0001] The invention belongs to the technical field of mechanical design, and relates to a design method of a slotted mechanism, and more specifically relates to an optimal design method of a cannon slotted casing template. Background technique [0002] The breech mechanism is one of the main components of the gun body. Its main function is to lock the bore of the gun when the gun is fired, to fire the primer of the shell and to draw out the cartridge after firing. After the shell is fired, it produces a great impact on the rear seat, and the shell extraction mechanism acts as a buffer to absorb the energy of the impact as much as possible to reduce the damage caused by the impact force to the breech block mechanism. The shell-extracting mechanism includes a bobbin, a rocker arm, and a shell-extracting template, etc. [0003] In the development process of new artillery, most manufacturers design the shell formwork according to empirical formulas, so that the...

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Problems solved by technology

However, for the shell formwork with shock absorption and cushioning, how to determine the optimal topology in the conceptual design stage, and determine its slotting gap and thickness in the detailed design stage to meet the maximum impact energy absorption and have a certain strength And the design technology of the lightest shell formwork structure has not been reported

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