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Inclusions have been shown to be the most significant factor to decrease the low cycle fatigue (LCF) life in powder metallurgy (PM) alloys used by most of turbine discs for advanced turboengines. In this paper, effects of inclusions on PM alloys' LCF life are evaluated through the definition of...
The paper presents conception and practical realization of laboratory testing of control system for small aircraft. The stand used in these tests is prepared in Matlab and Simulink environment. Usage of xPC and RTW modules enables the system to perform “Hardware in the loop” real time tests...
A high‐order compact upwind algorithm is developed for solving Navier‐Stokes equations in two‐space dimensions. The method is based on advection upstream splitting method and fourth‐order compact finite‐difference schemes. The convection flux terms of the Navier‐Stokes equations are discretized...
This paper describes a series of tests of remotely piloted vehicles (RPV) and full scale aircraft from which most of the performance information and selected dynamic characteristics normally required for aircraft operation can be obtained. The main goal of the paper is to compare corresponding...
In this study, dynamic mesh method is implemented on a real coded genetic algorithm to demonstrate gain in computational time as well as in higher performance for optimized parameters. Since the differences developed at each step in geometries of new members are not significant, therefore, it is...
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