produced by the induced voltage differences between parallel strands in a bar that cause high ohmic losses in high power synchronous generators. In this paper, three different cases are assumed for the armature end winding structure, and a 3-D finite element model is adopted to calculate the effectiveness and resultant losses of these cases. As mentioned later, by the use of an appropriate transposition in slot area, both main and leakage fluxes inside the machine are the same for all transposed strands
In some... ... middle of paper ... ...t Modeling of the Flow Through Porous Media". OWRT-C-4026(9006)(4). Office of Water Resources and Technology, U.S. Dept. of the Interior. Washington, DC. March, 1975. Christensen, B.A., "Mathematical Methods for Analysis of Fresh Water Lenses in the Coastal Zones of the Floridian Aquifer". OWRT-A-032-FLA(1). Office of Water Research and Technology. U.S. Dept. of the Interior. Washington, DC. Custodio, E., and Llamas, M.R. Hidrologia Subterranea. Ed
Undoubtedly the most important topics in this research are structural analysis, finite element methods and the basic review on Abaqus software due to the fact that this software is used as a research tool for examining the behaviour of structures. Therefore, it is essential to know about these topics and the relationships between them. An effort is made to review the important structural analysis and finite element method approaches, reports and fundamentals guiding the structural analysis of the CNC
Introduction 1.1 History of Composite Materials There were three principal driving forces that led to the interest and investment in composite materials in the world such as the designer's demand for lower weight and higher rigidity for aerospace structures, electronics, and other applications. At the beginning the 20th century composite structure materials did give a potential to meet these structural requirements of these various applications. Although composite materials had been known in various
USING FINITE ELEMENT THEORY Department of Civil Engineering, Faculty of Engineering Universiti Kebangsaan Malaysia, 43600 UKM Bangi Selangor, Malaysia. ABSTRACT The finite element method is capable of simulating the observed rutting of pavements subjected to axle load. Finite element modeling of pavements can be used directly to estimate primary response parameters without resorting to potentially costly field experiments. The objective of this study is to develop a finite element
Present research focuses on finite element based fatigue life prediction of lower suspension arm subjected to non-uniform varying loads. Primary objectives of this research work are to predict fatigue life of the lower suspension arm using Strain-life approach and to discover suitable materials for the suspension arm. The CAD model of lower suspension arm is developed using CAD tool - ProE (Wildfire4.0); later it is transferred to Ansys 12.1, where finite element analysis for fatigue life analysis
07/04/2014 To, The Admission Committee, Institut für Mechanik und Fluiddynamik, Weisbachbau,
Review Context Freeform surfaces prevail in contemporary architecture. Over the past two decades there has been a surge in the use of smooth, curved surfaces, which can be attributed to improvements in 3D modelling techniques and advances in finite element analysis. The complex geometries, examples of which can be seen in the Figure ? below, pose challenges in developing a feasible building envelope using conventional building materials such as steel and concrete. This has therefore created a need
graduate program ideally suited to my academic goals. I feel that graduate study here holds a lot of promise to me. The breadth and depth of course coupled with a stimulating research environment seems to me the right mix for creative work and new methods of research. To conclude, I would like to end by saying that I am fully aware that a career in research and academics requires a high level of intelligence, persistent dedication and a lot of sacrifice. I sincerely hope to have a mutually beneficial
In the current project, the blade structure is analyzed mainly on the four following aspects mentioned below: Analysis of maximum strength Stability analysis(buckling) Deflection analysis( to prevent blades from striking the tower) Analysis with different cores to check the stiffness Besides, fatigue failure analysis is also included in the real field testing. The first process in designing the wind turbine involve the calculation of the various loads expected to act on the blade surface during
material properties, geometry and the desired output. here HFSS will automatically generate an efficient ,accurate and appropriate mesh to solve the problem using the proven finite element method. The core of the program HFSS is based on the finite element method (FEM) (its practical application often known as finite element analysis (FEA)) where it is a numerical technique for finding approximate solutions to partial differential equations (PDE) and their systems, as well as (less often) integral
Design and Manufacturing. Out of my strong conviction that knowledge of computers is a prerequisite in today’s research, I’ve gained a special predilection towards Computer-Aided Design. This opened up a realm of possibilities in the field of Finite Element Analysis that I never imagined in my life. These courses have helped me build a strong foundation in mechanical engineering and laid the necessary groundwork to pursue graduate studies. Right from the second year, I was preparing myself by working
I want to be a professional programmer. Although my major study was mainly focused on engineering and mathematics, I had developed a solid interdisciplinary background in the college. When I was solving a problem, I always tried to come up my solutions from different angles. Through coursework, club activity and research, I began realizing the significance of computer science. My broad interests gradually concentrated on algorithm design and robotics. I believe I can achieve the master degree and
had come as close as possible to analyzing real world structures. Looking back I realize, I had learned great tools for structural analysis, but my "tool box" was still inadequate. I lacked a very important tool: finite element analysis. According to my professor, finite element analysis has revolutionized structural analysis. Although I liked my classes, my internship experiences really confirmed my interest in structural engineering. While working at Caltrans as a student volunteer, I
comprehensive exposure to a wide spectrum of courses, namely, Design Engineering, Kinematics of Machinery, Engineering Graphics, Finite Element Analysis, Thermodynamics, Mechanics of Solids, Robotics, Computer aided Design/Computer aided Manufacturing, etc. I strongly believe in “learning by doing”. It is the hope of coming up with path breaking results streaked with an element of uncertainty that makes experimental results ext... ... middle of paper ... ... and pioneering research. I would consider
4.1 INTRODUCTION Structural analysis is a process to analyze a structural system to predict its responses and behaviors by using physical laws and mathematical equations. The main objective of structural analysis is to determine internal forces, stresses and deformations of structures under various load effects. In this chapter, the structural plan is taken and it is designed in the sap2000 software by taking the center line diagram and firstly a basic ground level is designed and
bring about more understanding of the courses and to learn the real application of microcontrollers, I decided to design a working... ... middle of paper ... ...patches which gave better results. All of the fabrication was done by me using the method of chemical etching. The results of the fabricated model were compared experimentally by using vector network analyzer to those obtained from simulations using the simulation software. Now I feel strongly to carry out my research work more efficiently
Computational Fluid Dynamics: Computational fluid dynamics (CFD) is the branch of fluid mechanics which uses numerical methods and algorithms to work out and analyze the problems that involve fluid flows. Computers are used to perform the many of the calculations required to simulate the interaction of fluids and gases with the complex surfaces. Even with simplified equations
What is FEA? Finite element analysis (FEA) is a computerized method for predicting how a product reacts to real-world forces, vibration, heat, fluid flow, and other physical effects. Traditionally, a branch of Solid Mechanics. Nowadays, a commonly used method for multiphysics problems. Integrates Finite Element Analysis (FEA) in every 3D design of an machine. FEA visualizations ensure proper design by eliminating unnecessary costs and weight in a machine, while maximizing the structural strength
least ten years ago. A finite element analysis was also carried out in order to find the critical zones where high stress concentrations are present. Results showed a clear failure by fatigue under low stress and high cyclic fatigue on crankpins. [4] III. MODELLING AND COMPUTATIONAL ANALYSIS The materials used for the crankshaft are five which are based on their composition. Building an accurate and reliable calculating model is one of the key steps of analysis with finite element analysis. During the