Course syllabus

# Strukturdynamiska beräkningar Structural Dynamic Computing

## VSMN10, 7,5 credits, A (Second Cycle)

Valid for: 2014/15
Decided by: Education Board D
Date of Decision: 2014-04-03

## General Information

Elective for: F4, F4-bem, M4, Pi4-bem, V4-ko
Language of instruction: The course will be given in English on demand

## Aim

The course aims to provide knowledge of theory, computation and measurement methods in the field of structural dynamics. It will also develop the ability to evaluate models using computational programs in relation to laboratory results in project work. The course also aims to develop skills in written and oral presentations.

## Learning outcomes

Knowledge and understanding
For a passing grade the student must

• Be able to solve conceptual construction assignments based on some real structural problems.
• Be able to measure and discuss physical properties on these structures.
• Be able to verify obtained computational results against experimentally measured values.
• Be able to identify and handle the physical concepts and their mathematical syntax.

Competences and skills
For a passing grade the student must

• Be able to analyse general single-dof-problems.
• Be able to define, calculate and analyse structural dynamics multi-dof-problems, based on a finite element formulation.
• Be able to use and assess different solution strategies for structural dynamics problems.
• Be able to use advanced computational methods in structural dynamics to solve problems where there are several alternative solution possibilities, and be able to assess differencies in method and result.
• Present and argue for the chosen solution method at a final seminar.
• Be able to use advanced computational codes.

Judgement and approach
For a passing grade the student must

• Be able to assess different solutions and their accuracy.
• Be able to critically examine both own and others proposed solutions in an open discussion.
• Be able to propose solution based on incomplete data, recognise their scope and propose changes in basic conditions.
• Be able to summarise results in a computational report and assess colleagues' reports in relation to one's own.

## Contents

Single-dof models. Generalized Single-dof models. Time integration; Newmark’s method, implicit method, explicit method. Multi-dof models; finite elements, direct integration, modal superposition, eigenvalue analysis, response diagram. Earthquake analysis.

The lectures describe the theoretical concepts in relation to the application, with conceptual construction assignments which show how the realistic questions enhance the mathematical and numerical descriptions. The construction assignments relate to applied mechanics with the finite element method as basis for the work.

Beyond this moments dealing with general computer code systems for finite element analysis, i.e. Abaqus, Nastran or LS-Dyna are planned. This kind of computer code systems can be used in a wide range of physical/engineering problems. Construction assignment 2 is designed so that it is natural to use one of these systems.

## Examination details

Assessment: The assessment is based on hand-in assignments, two computational reports, theory exam, and a final oral discussion.