Thermal Effects for Shaft-Pre-Stress on Rotor Dynamic System

This Paper outlines study behaviour of rotating shaft with high speed under thermal effects. The method of obtaining the frequency response functions of a rotor system with study whirl effect in this revision the raw data obtained from the experimental results (using Smart Office program) are curve-fitted by theoretical data regenerated from some of the experimental data and simulating it using finite element (ANSYS 12). (FE) models using the Eigen analysis capability were used to simulate the vibration. The results were compared with experimental data show analysis data with acceptable accuracy and performance. The rotating effect causes un-symmetry in the system matrices, resulting in complexity in decoupling the mathematical models of the system for the purpose of modal analysis. Different method is therefore required, which can handle general system matrices rather than symmetrical matrices, which is normal for passive structures. Mathematical model of the system from the test data can be assembled. The frequency response functions are extracted, Campbell diagram are draw and simulated. (FE) is used to carry out such as simulation since it has good capability for Eigen analysis and also good graphical facility. Keywords: Thermal effects, Modelling, Campbell diagram, Whirl, Rotor dynamics.Comment: Published by: Academic Research Publishing Agency. All rights reserved, 6 pages, 4 figures, 1 pictur

The Role of the Advisory Opinion of the International Court of Justice in Establishing the Rules of International Humanitarian Law (In light of the advisory opinion on the legality of the threat or use of nuclear weapons)

As a weak power regarding the International Court of Justice jurisdiction, known as the advisory opinion, the research is trying to clarify probable impact of the power in enhancing and developing the international humanitarian law, that may be come through the advisory opinions, which we take one of the most important of it (the advisory opinion on the legality of the threat or use of nuclear weapons). Keywords: International Court of Justice, advisory opinion, international humanitarian law, threat or use of nuclear weapons