Abstract
Rod elements have wide application in the engineering structures including bridges, buildings, drilling platforms and other types of infrastructure. The ability to predict accurately the behaviour of these elements under various loads is crucial to the safety and reliability of above-mentioned structures. The aim of this work is to improve the reliability prediction of the offshore platform. One important aspect of this prediction is the study of the non-linear static elastic stress state of the rod elements. To solve these problems, designers and engineers use a number of techniques including the finite element analysis to ensure that the platform can withstand the expected loads and perform its intended function safely and reliably. The design of drilling platforms in the Caspian Sea is a complex and non-trivial task that requires careful consideration of various factors including environment, safety regulations and operational requirements. Severe environmental conditions such as strong winds, waves and currents can have a significant impact on the structural integrity of the platform, while the presence of hydrocarbons in the area poses a risk of explosions and fires. This study presents the calculation of amplitude-frequency characteristics of free oscillations of the offshore drilling platforms on an anisotropic layered base using the finite element method. The findings will help to understand better the design of the