Solution of the Problem of Free Vibrations of a Nonthin Orthotropic Shallow Shell of Variable Thickness in the Refined Statement

Discovering a pattern in the free vibrations of gently sloping shells of different geometry in the classic and refined statements

“…The cited papers address various methods for solving the problems on free oscillations, however, the calculations are performed for thin shells. The oscillation frequencies of relatively thick shells are considered in the refined statement in study [9]. In this case, the authors examined the orthotropic shells of variable thickness and the calculations were carried out using a spline-approximation method.…”