Showing papers by "Dalian University of Technology published in 1986"
01 Jan 1986
5 citations
TL;DR: In this article, a combining trust region and line search algorithm for equality constrained optimization is proposed, which only needs to solve the trust region subproblem once and then switch to line search to obtain the next iteration.
Abstract: In this paper, a combining trust region and line search algorithm for equality constrained optimization is proposed. At each iteration, we only need to solve the trust region subproblem once, when the trust region trial step can not be accepted, we switch to line search to obtain the next iteration. Hence, the difficulty of repeated solving trust region subproblem in an iterate is avoided. In order to allow the direction of negative curvature, we add second correction step in trust region step and employ nonmonotone technique in line search. The global convergence and local superlinearly rate are established under certain assumptions. Some numerical examples are given to illustrate the efficiency of the proposed algorithm.
5 citations
TL;DR: In this paper, energy method and finite difference method are used to compute the instability behavior of multilayered fiber reinforced composite cylindrical shells under axial compression, hydrostatic pressure and torsion.
Abstract: In this paper, energy method and finite difference method are used to Compute the instability behavior of multilayered fiber reinforced composite cylindrical shells under axial compression, hydrostatic pressure and torsion. The influences of initial imperfections, geometrical nonlinearities of shells and physical nonlinearities of the materials to the buckling and postbuckling behavior of the shells are considered. The effect of transverse shear is also discussed. The computational results of this paper are well agreed with the experimental data.
01 Jan 1986
TL;DR: In this article, the nonlinear hehavior of reinforced concrete deep beam has been studied by houndary element method in which the non-linear and nonhomogenous problem is treated as linear and homogenous boundary element equations with some initial strain.
Abstract: Nonlinear hehavior of reinforced concrete deep beam has been studied by houndary element method in this paper. The nonlinear and nonhomogenous problem is treated as linear and homogenous boundary element equations with some initial strain. The cooresponding program of solving the nonlinear or elasto-plastic problem has been developed.
01 Jan 1986
TL;DR: In this article, a hybrid numerical technique which synthesizes the Boundary Element Method (BEM) and the complete set of solution functions of the partial differential equation is introduced to find the approximate solution of the potential functions in the fluid domain.
Abstract: In this paper, a hybrid numerical technique which synthesizes the Boundary Element Method (BEM) and the complete set of solution functions of the partial differential equation is introduced to find the approximate solution of the potential functions in the fluid domain. The coupling vibration of arch dam-reservoir system is solved by this method, and it demonstrates that the method is very efficient in the calculation of coupling vibration of fluid-structure system.