Presently there is a little information that relates to heat shield systems.  Also this information is not certain in so many cases.  The main reason is that accurate calculations for measuring the sacrificing rate of various materials have not been obtained yet.  Additionally, the real scale test has two disadvantages: high cost and low flexibility, and for each case we must perform a new test...

Abstract The article proposes the main stages of compiling mathematical models for calculating and analyzing dynamic thermal modes asynchronous motors in systems an automated frequency electric drive are described. application maximum principle Newton-Raphson method is given, as well solution problem using principle, which leads to a doubling number differential equations. Under these condition...

It was made the analysis of influence geometric imperfections to form on stability centrally compressed thin - walled rods open profile with different wall thickness. The software complex finite element NASTRAN used create computer models rods. Shelves and walls are modeled as a set quadrangular shell elements six degrees freedom in node. Geometric first general loss an ideal surface, which obt...

a new approach utilizing newton method and homotopy analysis method (ham) is proposed for solving nonlinear system of equations. accelerating the rate of convergence of ham, and obtaining a global quadratic rate of convergence are the main purposes of this approach. the numerical results demonstrate the efficiency and the performance of proposed approach. the comparison with conventional homoto...

In this paper, we present a full Newton step feasible interior-pointmethod for circular cone optimization by using Euclidean Jordanalgebra. The search direction is based on the Nesterov-Todd scalingscheme, and only full-Newton step is used at each iteration.Furthermore, we derive the iteration bound that coincides with thecurrently best known iteration bound for small-update methods.