To predict the sealing performance of subsea pipeline compression connector, a semi-analytical method is proposed and verified. The leakage condition obtained as function minimum radial deflection. consists three parts: macroscopic analytical model for interference process deduced based on membrane theory, mesoscopic two-dimensional finite element analysis internally turned surface according to...

One of the main and responsible stages creating an apparatus for numerical analysis structures using finite element method is its implementation in form a set programs. The principles complex construction should take into account modern requirements strength calculation software complexes. Among them, first all, automation computing process, rational use resources operating external memory stor...

The objective of this work is to innovatively apply the boundary element method (BEM) as a general modeling strategy deal with complicated reservoir problems, especially those related heterogeneity and fracture systems, which are common challenges encountered in practice engineering. transient flow behaviors reservoirs containing multi-scale heterogeneities enclosed by arbitrarily shaped bounda...

The electromagnetic force between two misaligned coils (coils with parallel axes) with uniform current density distribution and rectangular cross section based on the derived semi-analytical expressions was presented. Using the semi-analytical expressions for magnetic force between filamentary misalignment circular coils we calculate the propulsive and the transverse magnetic force. In order to...

A semi-analytical iterative method as one of the newest analytical methods is used for the elastic analysis of thick-walled spherical pressure vessels made of functionally graded materials subjected to internal pressure. This method is accurate, fast and has a reasonable order of convergence. It is assumed that material properties except Poisson’s ratio are graded through the thickness directio...

In this paper we improve the quasilinearization method by barycentric Lagrange interpolation because of its numerical stability and computation speed to achieve a stable semi analytical solution. Then we applied the improved method for solving the Fin problem which is a nonlinear equation that occurs in the heat transferring. In the quasilinearization approach the nonlinear differential equatio...