Специализированные пакеты численного моделирования и анализа

Specialized Software for Numerical Modeling and Analysis by FEM

Аннотация курса

The increasing requirements for the strength and reliability of modern constructions with the simultaneous increasing of complexity of their geometric features require calculations to optimize of their deformation process, as well as of various thermal-physical processes. Various numerical methods are widely used for this purpose, among which the most extensively used is the finite element method (FEM). The FEM is applied for the stress-strain state analysis, thermal analysis, for solving problems of hydraulic gas dynamics and electrodynamics, as well as for interdisciplinary problems. The main objective of this course is to get knowledge about FEM and the practical skills with ANSYS software. Students will understand the idea of the FEM theory, types of finite elements, creating techniques of geometric and FE models, ways of the materials properties definition, of the application of mechanical loads and temperature fields, as well as they get practice of strength and thermal analysis for various construction

Занятия проводятся в компьютерном классе

Авторы и/или преподаватели

Крымская Ольга Александровна

Ученая степень: кандидат физико-математических наук
Об авторе/преподавателе: Scientific Work Experience:
X-ray texture and structure study of different materials, analysis of texture induced anisotropy of mechanical properties, mechanisms of plastic deformation and texture formation under technological treatment and operation, namely:
– obtaining of the experimental data on modern research equipment;
– processing of the experimental results using the specialty application-dependent software;
– the software development for the experimental results processing;
– analysis of the obtained results and reports preparation on projects and research work; presentation of scientific achievements at the international scientific symposiums, conferences and seminars.

Темы курса

1. Introduction. Finite element method (FEM): Calculating of the constructions strength. Fundamentals of the FEM. Nodes, degrees of freedom, elements, stiffness matrix of the element. Determination of stresses and strains. Form functions. Global stiffness matrix. Boundary conditions.
2. Strength problems: Introduction to the GUI of ANSYS Workbench. Development of a geometric model: geometric primitives, ways to create them. Import of geometric models from CAD programs. Simplification of the calculation scheme. 2D vs 3D analysis. Symmetry conditions.
3. Heat transfer and heat generation: Heat transfer equations. Heat transfer and internal heat generation. Applying the contact boundary conditions. Transient and steady-state thermal analysis. Incremental analysis. Analysis of thermal stresses.
4. Hydrodynamics: The Navier-Stokes equations. Fluid elements type. Fluid flow analysis using Fluent solver. Inflation mesh control. Applying temperature, velocity and streamline. Solving the mixing task of liquids of different temperatures.