Mathematical justification of seamless ring joint efficiency of multilayer cylindrical shell bearing elements for pressure vessels and reactors

Abstract

The paper analytically justifies and experimentally proves the efficiency and manufacture ease of seamless ring joint with friction of the multilayer cylinder shells for pressure vessels and reactors. The study uses the analytical methods of the theory of elasticity of deformable shells, as well as multilayer and monolithic cylindrical bodies. A method is proposed for determining the sufficient width of the joint of two multilayer cylinder shells to ensure joint efficiency and manufacture ease. A mathematical model is obtained to estimate the parameters of its strength condition. It is shown that the calculated friction coefficient totally depends on the winding density of adjacent (joined) multilayer cylindrical elements. The designed method is tested on the industrial high-pressure vessel, as a result, the condition of ring strength has been obtained. The obvious advantage of a ring joint with friction over welding ring joints is determined.