SD2111 Engineering Acoustics 6.0 credits

• Educational level

  Second cycle

• Academic level (A-D)

• Subject area

  Mechanical Engineering
  

• Grade scale

  A, B, C, D, E, FX, F

• Course page on KTH Social

Learning outcomes

The course aims at presenting the fundamental ideas and theories necessary to understand and analyse elastic wave phenomena in fluid or solid media. The course also gives an introduction to signal analysis and measurement techniques as well as human reponse to sound and vibration. The goal is to give the student a good understanding of the theory and illustrate important applications ranging from design of consert halls to quite vehicles and low noise fans.

After the course students should be able to:

• Describe fundamental concepts of engineering noise and vibration, measurement techniques and instruments. Explain the effect of noise and vibrations on humans and equipment.
• Apply Fourier analysis to solve coupled differential equations, calculate the frequency content of periodic and transient signals and implement this knowledge to analyse mechanical systems. Describe methods to distinguish between linear and non-linear mechanical systems.
• Understand the physical foundations and the mathematical models of sound waves in fluids and solids, wave propagation, transmission, reflection and radiation and understand how to apply these models to sound and vibration problems in mechanical and vehicle engineering.

Course main content

• Theory for elastic waves in fluids and solids
• Human response to sound and vibration
• Fourier methods, linear systems and frequency response functions
• Vibration isolation
• Vibrations in beams and plates
• Spherical and cylindrical sound waves
• Energy methods and room acoustics
• Flow Acoustics
• Sound in ducts and mufflers
• Measurement methods

Two measurement exercises are included in the course.

Disposition

LAB1 - Measurement Course, 0.5 credits, grade scale: P, F

TEN1 - Written theory examination, 3.0 credits, grade scale: P, F

TEN2 - Witten problem examination, 2.5 credits, grade scale: P, F

Eligibility

BSc degree in Mechanical Engineering or similar.

Literature

Sound and Vibration, course book available from the department.

Examination

• LAB1 - Measurement Course, 0.5 credits, grade scale: P, F
• TEN1 - Exam 1, 3.0 credits, grade scale: P, F
• TEN2 - Exam 2, 2.5 credits, grade scale: P, F

Requirements for final grade

Written theory examination (TEN1, 3 university credits), Written poblem solving examination (TEN2, 2.5 university credits). Approved measurement exercises (LAB1, 0.5 university credits)

Offered by

SCI/Aeronautical and Vehicle Engineering

Contact

Mats E G Åbom

Examiner

Mats E G Åbom <matsabom@kth.se>

Version

Course plan valid from: Autumn 12.
Examination information valid from: Autumn 11.