Course syllabus for Technical acoustics 1

Course syllabus adopted 2021-02-16 by Head of Programme (or corresponding).

Overview

  • Swedish nameTeknisk akustik 1
  • CodeVTA081
  • Credits7.5 Credits
  • OwnerMPSOV
  • Education cycleSecond-cycle
  • Main field of studyMechanical Engineering, Civil and Environmental Engineering, Engineering Physics
  • DepartmentARCHITECTURE AND CIVIL ENGINEERING
  • GradingTH - Pass with distinction (5), Pass with credit (4), Pass (3), Fail

Course round 1

  • Teaching language English
  • Application code 38112
  • Maximum participants28 (at least 10% of the seats are reserved for exchange students)
  • Open for exchange studentsYes

Credit distribution

0198 Oral examination 7.5 c
Grading: TH		 7.5 c

In programmes

Examiner

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Eligibility

General entry requirements for Master's level (second cycle)
Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements above.

Specific entry requirements

English 6 (or by other approved means with the equivalent proficiency level)
Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements above.

Course specific prerequisites

Basic course in acoustics (e.g. Introduction to audio technology and acoustics)

Aim

The course intends to give an in-depth knowledge about structure- borne sound and its control. The course focuses on the prediction and control of sound propagation in structures and the radiation of sound from structures. The course is recommended for those students who intend to focus on noise control engineering. It is highly advised that students continue with Technical acoustics 2, where the subjects of Technical acoustics 1 are practiced on a real-life example.

Learning outcomes (after completion of the course the student should be able to)

  • describe and apply the fundamental concepts used in the field of structural acoustics (wave approach, modal approach, description of damping, etc.),
  • apply the equations that describes wave motion in fluids and solids in order to describe wave propagation and reflection/transmission at interfaces between different materials and geometries (e.g. blocking masses, elastic interlayers, junctions)
  • describe and evaluate the functioning of numerical tools such as SEA in the field of structural acoustics
  • apply SEA for simple cases
  • understand and discuss different damping models applied in structural acoustics
  • explain the coupling between wave in fluids and solids, along with be able to apply this theory to predict sound radiation from structures in a qualitative and quantitative way,
  • use damping treatments such as simple damping layers and sandwich design for noise control problems

Content

  • Discrete (lumped) dynamic systems.
  • The vibration field and wave types in solids, beams and plates.
  • Vibrating finite systems.
  • Mobility description
  • Modal description of vibrational fields. 
  • Influence of impedance variation, blocking mass, elastic interlayer
  • Damping mechanisms - damping models - damping layers
  • Statistical Energy Analysis
  • Basic radiators, radiation from vibrating surfaces.
  • Integral equations, BE-calculations. Radiation factors.

Organisation

Lectures and three assignments

Literature

Kropp, W., "Technical Acoustics" (published by the Department, see www.ta.chalmers.se).

Examination including compulsory elements

Oral examination and assignments. The marks on both are evenly weighted for the final mark.

The course examiner may assess individual students in other ways than what is stated above if there are special reasons for doing so, for example if a student has a decision from Chalmers on educational support due to disability.