Simulation of Dynamic Loading of an Anchor Rope during Harvester Operation on a Steep Slope

The expansion of the scope of safe mechanized logging requires adaptation of forestry equipment to operations in cutting areas with large inclination angles, which, in turn, necessitates the development of new design systems, machines, and mechanisms for solving this problem. However, there is a lack of research on designing and modeling work processes for logging machines in rugged hilly terrain with steep slopes. Known studies are mainly of experimental nature. The purpose of the study is to create a dynamic mathematical model of a rope anchor system, which is a crucial structural component for the safety of wheeled harvesters. Objects and methods. The object of this study is a rope anchor system. The Lagrange method of the second kind was used to construct a system of differential equations for the motion of the mass centers of the main structural components of the harvester and the anchor system. Results. In relation to a three-axle harvester with a 6K6 wheel formula, calculations have been performed to determine the oscillatory processes and dynamic parameters that affect the load on the anchor system and the safety of the harvester's operation during sorting. Conclusion. The dynamic model makes it possible to take into account and systematically analyze a large number of quantitative design and operational parameters of the harvester, as well as the physical and mechanical properties of the soil, which characterize the dynamic behavior and loading on both the structural elements of the anchor system and the harvester itself. One promising direction for further use of this model is the development of practical recommendations for designing efficient and reliable rope anchor systems.