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Graduate courses

Departments' graduate courses for PhD-students.


Syllabus for

Academic year
VTA155 - Design of silent products
Utveckling av tysta produkter
Syllabus adopted 2017-02-07 by Head of Programme (or corresponding)
Owner: MPSOV
7,5 Credits
Grading: UG - Pass, Fail
Education cycle: Second-cycle
Major subject: Mechanical Engineering, Civil and Environmental Engineering

Teaching language: English
Application code: 38116
Open for exchange students: Yes
Maximum participants: 25

Module   Credit distribution   Examination dates
Sp1 Sp2 Sp3 Sp4 Summer course No Sp
0199 Design exercise 7,5 c Grading: UG   4,0 c 3,5 c    

In programs

MPSOV SOUND AND VIBRATION, MSC PROGR, Year 2 (compulsory elective)
MPSOV SOUND AND VIBRATION, MSC PROGR, Year 1 (compulsory elective)


Wolfgang Kropp

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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

Knowledge corresponding to the compulsory courses in the MSc programme Sound and Vibration


As this is one of the final courses in the programme, the aim of the course is to further develop the students ability to independently apply knowledge to solve noise problems as engineers in practice and to handle more complex problems. The course gives further knowledge and applies knowledge obtained in previous courses in the development and methodology used in the design of silent products. Different products exemplify the strategies for low noise design using passive techniques.

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

  • Apply a methodology for designing low noise products and achieve solutions for real acoustic problems in the industry.
  • Be able to identify and formulate goals and requirements for acoustic performance of products.
  • Independently identify, formulate and solve real life noise control engineering problems. This includes the ability to independently evaluate, choose and apply adequate methods and tools for noise control engineering.
  • Apply models and tools to simulate the acoustic performance of products.
  • Select appropriate product modifications in order to ensure a good acoustic performance without endangering other performance criteria.
  • Design, plan and set up experiments, together with the analysis, interpretation and reporting of the results.
  • Work in teams and collaborate in groups.
  • Understand sound generation, radiation and propagation in complex situations.
  • Understand and apply the basic mechanisms for noise control engineering.


The course is divided in five parts:

Part 1 Development of design strategy for silent products
At the end of this part the student should have formulated a general strategy that could be applied to the problem. In the first meetings we will try to develop our own strategy based on the knowledge we have at the beginning of the course. However, it is worthwhile to see how other people have attacked problems in these areas. There is substantial work in the area of noise control presented in literature. All groups will carry out a literature study. Focus of the study should be on design strategies (not on the results of noise control!). The results from these studies will be summarised in a short written report and a presentation (20 minutes) which will be given at one of our lecture times.

Part 2 Learning of Noise control techniques
Although the student have already quiet a substantial background in acoustics, the knowledge is more on the theoretical side than on the practical application. This part will focus on
  • noise generation mechanisms and their potential for noise reduction,
  • the possibilities to reduce noise by secondary measures, their application potential in practice and their limitations.

Part 3 Investigation of the problem, collection of required knowledge
As a study problem the design of a product from industry is chosen. Different products are used each year. We will carry out measurements and investigate the noise generation mechanisms. It will be the students task to suggest design changes, which are realistic and at the same time lead to decreased annoyance due to noise.

Part 4 Suggestion for design changes
For the investigated object design changes have to be suggested based on collected knowledge and understanding of the problem.

Part 5 Final study of the improvements, report

The course will be finalised by a final report, which is compulsory. The reports will be given to the manufacturers for feedback from the company on the contents. The report is also presented at a final seminar.


The course comprises the following learning activities: lectures, labs and a design exercise. However, only a few lectures are scheduled. It is up to the students to plan the labs. Additional lectures will be planned in the course depending on the needs. The design exercise is followed up regularly throughout the course through weekly meetings.


The literature will be adapted to the needs of the students and to the choice of product used as example in the course. The material will be supplied at the course page (

Examination including compulsory elements

Active participation in the group work, written and oral presentation in the seminars (3 seminars over the whole course) is compulsory. There are no marks beside passed and not passed based (UG) on seminar reports (50%) and the final report (50%).

Page manager Published: Thu 04 Feb 2021.