Structural Dynamics and Aeroelasticity

The course is an introduction to the Finite Element Method (FEM) and its application to the field of Structural Dynamics. For practical application NASTRAN software environment is recommended. Focus on fluid-structure coupling is made. The fluid forces exerted on the structure for incompressible and compressible flows is also considered. Aeroelastic application in NASTRAN software environment will be given.

 

Beginning with a brief description on the different numerical methods and their application to the field of structural dynamics the course evolved towards the most popular of them, the Finite Element Method (FEM). The simple case of one dimensional structural elements is first approached. Different options to obtain the mass matrix for the structural element are considered.

Next, two dimensional structural elements like plates, shells or membranes are studied. Different methods for the computation of the natural frequencies and normal modes of the vibrating structure will be given and their physical meaning explained. Application to aeronautical structure will be presented.

The second part of the course is dedicated to the field of Aeroelasticity. First, the aerodynamic forces exerted by the fluid on the structure at low, medium and high velocities will be considered.
The coupling of the fluid-structure is finally studied, focusing on the cases of structural stability and structural response.

Target audience: 

• Aerospace and Mechanical Engineers or Graduate students working in the areas of structural dynamics and Aeroelasticity.
   

Learning goals:

• The participant will get knowledge on the fundamentals of mechanical vibrations and unsteady aerodynamics and their coupling for the aeroelastic problem.
   
• The participant will be able to describe, discuss and use finite element models for analysing the structural dynamics of one and two dimensional structures.
   
• The participant will be able to explain the key elements and fundamental theories of unsteady aerodynamics.
   
• The participant will be able to distinguish and formulate the static and dynamic aeroelastic problems.
   
• The participant will be able to describe the procedures and background relationships involved in flight tests.

Technical requirements:

• The student must have a laptop with calculation options.
   

Recommended previous knowledge:

• Knowledge of static and dynamic structural calculations.
   
• Basic aerodynamics knowledge.

Para más información haz clic aquí.