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EN
The process of designing a longwall powered support is extremely complex and requires many operations related to the creation of a complete machine. The powered support section is one of the basic elements of the longwall system. The implementation of the support that meets the guidelines of the manufacturer and user, requires an endurance analysis at the design stage conducted according to the regulations in force. The main objective of the research was to perform the analysis of the ultimate strength of selected elements of the designed powered support section. The research was carried out with the use of special software that uses the finite element method. The article presents the analysis of the strength limits done with the help of the finite element method, determining the strength of selected elements of the longwall support section. The solutions proposed included changes in the structure and properties of the material in the design process. The aim of the proposed solution was to obtain a model with strength value that meets safety standards. The research results are a valuable source of knowledge for designers. Solutions of this type set examples for spatial models of the longwall support section being designed nowadays. The analysis presented in the article, together with the results of the research and the conclusions resulting from them, may improve the safety and effectiveness of powered supports.
PL
W artykule przedstawiono badania, których celem jest analiza wytrzymałości granicznych konstrukcji obudowy zmechanizowanej. Przeprowadzono je z wykorzystaniem metody elementów skończonych. W oparciu o wyniki badań zaproponowano model spełniający normy bezpieczeństwa.
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