Congrès International d'Architecture Moderne

About: Congrès International d'Architecture Moderne is a based out in . It is known for research contribution in the topics: Boundary value problem & Jet (fluid). The organization has 393 authors who have published 403 publications receiving 4104 citations.

United Modeling of Working Process in Aircraft Gas Turbine Engines

Abstract: This paper is about the modern mathematical models of working process in the whole flow passage of aviation gas turbine engines. These models are referred as high-level models, based on real 3D geometry of engine flow passage. They allow to simulate steady and unsteady processes in 1D, 2D and 3D formulations, calculate engine performances, determine propagation of radial and circular parameter no uniformities in engine flow passage and predict influence of main parameters on engine efficiency. Typical examples of working process simulation in whole engine and their components are presented below.Copyright © 2008 by ASME

Frequency-domain method for multistage turbomachine tone noise calculation

Abstract: A method of frequency-domain calculation of the multistage turbomachinery tone noise is presented The method is based on the kinematic relations featuring dependence of flow fields in a turbomachi

Vibration of antisymmetric angle-ply laminated plates under higher order shear theory

Abstract: This paper deals with the analysis of vibration of antisymmetric angle-ply plates using spline method for higher order shear theory. Free vibration of laminated plates is addressed to show the capability of the present method in the vicinity of higher order shear deformation theory and simply supported edges of plates. The coupled differential equations are obtained in terms displacement and rotational functions. These displacement and rotational functions are approximated using cubic and quantic spline. A generalized eigenvalue problem is obtained and solved numerically for an eigenfrequency parameter and an associated eigenvector of spline coefficients. The antisymmetric angle-ply fiber orientation are taken as design variables. Numerical results enable us to examine the frequencies for various geometric and material parameters and accuracy and effectiveness of the proposed method is also verified by comparative study.

Multiobjective fuzzy stochastic linear programming problems in the 21st century

Abstract: The focus of this paper is a survey of various kinds of multiobjective linear programming problems, where fuzziness and/or randomness in objective and/or in constraints are discussed comprehensively including full fuzzy stochastic in both the objective functions and constraints. This paper also studied the multiobjective fuzzy stochastic linear programming problems, and what relatives to them chronologically in this century, such formulation, and the various research methodology that has been used in transforming them to their corresponding equivalent deterministic linear programming problems. Optimal solution for the original problem has been discussed too. [Abdulqader Othman Hamadameen, Zaitul Marlizawati Zainuddin. Review Article, Multiobjective Fuzzy Stochastic Linear Programming Problems in the 21 Century. Life Sic J 2013; 10(4):616-647]. (ISSN: 1097-8135). http://www.lifesciencesite.com. 81

Vibration analysis of a shear deformed anti-symmetric angle-ply conical shells with varying sinusoidal thickness

Abstract: The study is to investigate the free vibration of antisymmetric angle-ply conical shells having non-uniform sinusoidal thickness variation. The arbitrarily varying thickness is considered in the axial direction of the shell. The vibrational behavior of shear deformable conical shells is analyzed for three different support conditions. The coupled differential equations in terms displacement and rotational functions are obtained. These displacement and rotational functions are invariantly approximated using cubic spline. A generalized eigenvalue problem is obtained and solved numerically for an eigenfrequency parameter and an associated eigenvector of spline coefficients. The vibration characteristic of the shells is examined for cone angle, aspect ratio, sinusoidal thickness variation, layer number, stacking sequence, and boundary conditions.