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Abstract

The problems of calculating dynamic processes are widely used for a broad variety of complex ship mechanisms with elastic-deformable links. The dynamics of elastic ship mechanisms is a complex set of mechanical and physical phenomena. No issue can be solved rationally when designing ship mechanisms without taking into account the requirements of strength and rigidity of individual links and ship mechanisms as a whole. During operation, the ship’s mechanisms are affected by various static and dynamic forces. To withstand the action of these forces, the ship’s mechanisms must have sufficient strength in general and in their individual parts. One of the criteria for the construction material strength is stress, and for the stiffness is displacement. But establishing that the stresses do not exceed the permissible value does not always allow us to conclude that the structure can safely exist. Therefore, the concepts of displacements, deformations and stresses are crucial in strength and stiffness calculations. This is especially important when designing ship mechanisms consisting of a variety of core elements. Since elastic inertial elements are widely represented in them, the calculation of dynamics is essential for them. Currently, the problems of nonlinear dynamics of thin-walled structures under the action of complex loads have become a necessary component of engineering analysis. The calculation of the dynamics of spatial ship mechanisms with nonlinear elastic links by the most promising numerical method allows us to accurately describe both the geometry and the nature of the loads applied to it and the elastic properties of the ship mechanisms material and to analyze their stress-strain state. As well as obtaining reliable data on the load-bearing capacity of anisotropic rod links, it makes it possible to make rational design decisions when designing specific ship mechanisms.