Structure borne sound refers to noise that is originated by vibration sources and the transmission of these vibrations to an element that can radiate sound. According to the source-transmission-radiator-receiver model, and since minimizing the source of vibration is often not feasible, the most effective way to minimize structure borne sound is to minimize the transmission of vibrations. This course is about how vibrations are transmitted in structures and how the transmission can be minimized. To this end we learn about structural wave types such as longitudinal and bending wave and how to determine the energy input to these waves for several forcing conditions. Furthermore we learn about how wave are transmitted and reflected and how to model damping in beam and plate structures.
FSD3110 Structure Borne Sound 7.5 credits
Course offerings are missing for current or upcoming semesters.
Headings with content from the Course syllabus FSD3110 (Spring 2019–) are denoted with an asterisk ( )
Content and learning outcomes
Course contents
Intended learning outcomes
Students graduating from the course should:
- Have knowledge about the concepts and methods used to describe and analyse vibrations in both discrete and continuous systems
- Be able to derive the homogeneous wave equations and their solution for the different types of waves in structures
- Understand the concepts of mobility, impedance, energy and power and be able to derive their corresponding expressions all structural wave types
- Be able to describe the transmission of reflection of structural waves in complex junctions and derive expressions for reflection and transmission coefficients
- Understand the different discrete damping models, the concept of loss factor and the implications of damping for the vibration response of beams and plates
- Be able to derive expressions for the loss factors of plates with attached layers
Literature and preparations
Specific prerequisites
Masters degree in mechanical engineering, vehicle engineering, engineering physics or equivalent. Documented knowledge of English corresponding to English B / English 6.
Recommended prerequisites
No information inserted
Equipment
Computer.
Literature
Structure Borne Sound, 3rd edition, Cremer, Heckl and Petersson
Examination and completion
If the course is discontinued, students may request to be examined during the following two academic years.
Grading scale
P, F
Examination
- SEM1 - Seminar, 2.5 credits, grading scale: P, F
- TEN1 - Exam, 5.0 credits, grading scale: P, F
Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.
The examiner may apply another examination format when re-examining individual students.
Oral exam takes place in groups.
Other requirements for final grade
Participation in course seminars, assignments and oral exam.
Opportunity to complete the requirements via supplementary examination
No information inserted
Opportunity to raise an approved grade via renewed examination
No information inserted
Examiner
Ethical approach
- All members of a group are responsible for the group's work.
- In any assessment, every student shall honestly disclose any help received and sources used.
- In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.
Further information
Course room in Canvas
Registered students find further information about the implementation of the course in the course room in Canvas. A link to the course room can be found under the tab Studies in the Personal menu at the start of the course.
Offered by
Main field of study
This course does not belong to any Main field of study.
Education cycle
Third cycle
Add-on studies
No information inserted