DESIGN OF A CARTRIDGE TEMPERATURE MEASURING DEVICE

Abstract

The work is devoted to the current topic of designing and manufacturing mobile, portable, ergonomic and accurate devices for measuring disturbing extraneous factors (in particular, the temperature of the cartridge), which undoubtedly and significantly affect the accuracy of the performance of a military task, namely sniper shooting. The purpose of the article is to create a cartridge temperature measuring device that meets certain schematic, design and technological parameters, manufacture a product prototype, test it in operating conditions and debug the assembly process. In the material of the article, the effect of cartridge temperature on the qualitative characteristics of the shooting process was investigated, in particular, when the temperature of the charge and air changed by the same amount, it was concluded that an increase in the temperature of the charge of the cartridge and air contribute to a slight increase in the duration of the bullet’s flight and its final speed, but a significant increase in range her flight. The geometric design of the device is presented, namely, two variants of the design of a portable cartridge temperature measuring device were created depending on the indicator variant used. The area of the products differs by more than two times, the linear dimensions are 103x55 mm х mm and 54x39 mm х mm with almost the same height of the finished product, which is due to the use of different types of indicators and, accordingly, the need to be powered by different voltage ratings of power cells. Proposed prototypes of the device for measuring the temperature of the cartridge, which satisfy certain schematic, design and technological parameters, small batches of products of two varieties were directly manufactured, submitted for approval under operating conditions, and initial debugging of the assembly process was carried out. Based on the results of the tests, the supply chains of the components, the design of the device and the assembly technology were adjusted. Prospects for further research should include the need for more detailed study of the issues of assessing the demand for finished products, the dynamics of the nomenclature of the open sale of components, the parameters of the technological process of assembly and finding out the costs of production and the market value of the device, since the specified activity is innovative, proactive and volunteer in nature