Determining the endurance performance characteristics of a mechanical system made of composite materials

This paper considers a possibility of enhancing the endurance characteristics of aircraft mechanical systems in the early stages of design calculations. The set problem of increasing the service life of the designed aircraft structure is solved based on obtaining the most effective structural parameters that ensure both relatively low and smoothest distribution of the stress field. Solution of the problems of dynamics for strength analysis of three-dimensional mechanisms with absolutely rigid or pliable links serves as the initial data for determining the stress-strain state.