Syllabus academic year 2011/2012
(Created 2011-09-01.)
Credits: 7,5. Grading scale: TH. Cycle: G2 (First Cycle). Main field: Technology. Language of instruction: The course might be given in English. VTAF05 overlaps following cours/es: VTA016 and VTA060. Optional for: V4hb, V5ko. Course coordinator: Dephine Bard,, Structural Mechanics. Recommended prerequisits: FMAA05 Calculus in One Dimension and FMA430 Calculus in Several Variables and VTAF01 Sound in Building and Environment. Assessment: Passed written exam, passed project task and passed laboration reports. Home page:

The purpose with the course is to give knowledge about sound propagation in different media.

Knowledge and understanding
For a passing grade the student must

Skills and abilities
For a passing grade the student must

Different wave types and their respective properties. Longitudinal, transversal and bending waves. Wave propagation in beams and plates. Wave propagation, transmission and reflection in and between different meda. Damping mechanisms and the mathematical description. Plates with damping layers. The concept of impedance. Inimpedance in beams and plates. Transmission of structure bourne sound. Periodical structures. Noise in ventilation systems. Statistical Energy Analysis. Sound radiation from structures. Elementary sound radiators. Acoustics in volumes.

The course contains a larger project task where several of these aspects are included..

The two course alternatives comprises each three laborations á 4 hours depending on program/specialisation:

E,F,Pi,V: Structural analysis and design:

- Introduction to sound propagation

- Impedance measurement

- Sound propagation in solid media

V: Husbyggnad:

- Reverberation time and eigenmodes in room acoustics

- Sound transmission

- Step sound isolation

Project tasks
The two course alternatives each contains a project task depending on chosen specialisation:

E,F,Pi,V: Structural analysis and design:

- Modelling of oscillation in beams and plates

V: Husbyggnad:

- Modelling of flanking and direct transmission

Handed out by the department.
Lecture notes and instructions for construction tasks and laborations.