Active Methods in Acoustics

Lecturer:

Ondřej Jiříček (gar.)

Tutor:

Ondřej Jiříček (gar.)

Supervisor:

Department of Physics

Synopsis:

Physical principles, interference, Huygens principle, sound field in ducts, vawe-guides and enclosures. Active noise control in a duct. One or more secondary sources. Active control in enclosures, acoustic coupling, modes, local control. Feedback and feedforward strategy, analog adn digital realisations, algorithms based on LMS, stability of algorithms, multichannel algorithms. Practical realisations of active systems. Active control of vibrations, transducers for active control.

Requirements:

An assessment is not required for this subject.

Syllabus of lectures:

Syllabus of tutorials:

Study Objective:

Study materials:

Nelson, Elliott: Active control of sound, Academic Press, London, 1992.

Fuller, Elliott, Nelson: Active control of vibration, Academic Press, 1997.

Note:

Time-table for winter semester 2011/2012:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Mon
Tue
Fri
Thu	roomT2:H1-129 Jiříček O. 09:15–10:45 (lecture parallel1) Dejvice haly Akustická učebna
Fri

Time-table for summer semester 2011/2012:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Mon	roomT2:H1-129 11:00–12:30 (lecture parallel1) Dejvice haly Akustická učebna
Tue
Fri
Thu
Fri

The course is a part of the following study plans:

• Doctoral studies, daily studies (compulsory elective course)
• Doctoral studies, combined studies (compulsory elective course)
• Doctoral studies, structured daily studies (compulsory elective course)
• Doctoral studies, structured combined studies (compulsory elective course)