Approach to the selection of the optimal sized of the ear – fork lug

Abstract

This paper considers an approach to the selection of a coefficient that takes into account the angle of application of the load to calculate the strength of the ear-plug type eyelets, which are responsible power elements that perceive concentrated forces and affect the efficiency of the connected units and aggregates. The peculiarity of this study is to determine the optimal limits of the ratio range of linear dimensions based on static tests. In order to simplify the visualization task and find the optimal shapes and sizes of the eyelet, various methods for solving this problem were compared. Developed on the basis of MS.Excel, the program for automated calculation of the strength of eyelets of the ear - plug type can be used in the design and calculation of eyelets. The results of calculations in MS.Excel and SimCenter 3D show good accuracy and convergence, including with the results of static tests with an average discrepancy of 2 to 5%. The analysis of the obtained results was carried out and recommendations were developed to expand the range of the coefficient, taking into account the optimal ratio of linear dimensions in accordance with the requirements of strength, technological design, as well as maintainability.