Vibro-acoustics modeling using the latest in Computer Aided Acoustics Design

ATI's Computational Acoustics course

Dr. Hamid Bouhioui, Instructor

Summary:

At the beginning of the 20th century acoustics seemed still to be nothing but a field of scientific curiosity. Since then, noise control has become a necessity, which has led to a diversification of the approaches, methods and techniques used to understand and resolve various categories of problems. Computers provide a unique tool for the analysis and design of these problems and they have become instrumental in achieving optimal solutions to complex acoustical problems.

Instructor

Dr. Hamid Bouhioui is the founder of BC Acoustics, a consulting company based in Vancouver British Columbia, Canada. He is specialized in Acoustics, Vibrations and Noise control. He managed various projects including for companies such as Saint-Gobain-France, Mercedes-Benz-Germany, Boeing-USA, and High Speed Train-France. He has been Invited lecturer at: The Boeing Company, Seattle; The Audio Engineering Society, Vancouver BC; The Acoustical Society of America, Seattle; The Computer Science Department, UBC; Canadair – Bombardier, Montreal; Saint-Gobain Vitrage Company, Paris; The Composites Group at UBC; The Civil Engineering Department at UBC and Several International Acoustics meetings.

Contact this instructor (please mention course name in the subject line)

What You Will Learn

• How to calculate the resonance frequencies of rooms.
• How to determine the pressure modes for a resonance frequency in rooms.
• The basics of sound transmission through single and multiple panels/walls.
• STC vs. Transmission-Loss (TL).
• The latest computer aided technology.
• The finite-element method (FEM).
• The boundary-element method (BEM).
• Why FEM and BEM are so powerful.

Course Outline

1. Basics of acoustics. Wave motion. Wave cycle: Period, Amplitude and Frequency.

2. Room acoustics. Room resonance, Natural frequencies. Reverberation. Notion of diffuse field.

3. Acoustic pressure distribution in rooms. Standing waves. How to determine the acoustical mode shapes in typical rooms.

4. Exercise. Calculation of resonance and mode shapes in typical rooms.

5. Sound transmission through single panels. Factors Affecting Sound Transmission Loss (TL).

6. Mass Law. Effects of Stiffness. STC versus Transmission Loss.

7. Sound transmission through multiple panels. Transmission through double-panels and triple-panels. Comparison with single-panels.

8. Case study. Transmission of sound through double-glazing windows.

9. The Finite-element method. What is FEM. Its history. Application Areas.

10. The boundary element method. What is BEM. Its history. Application Areas.

11. The use of FEM and BEM in acoustics. Examples of application in acoustics modeling and prediction.

12. Case study. Prediction of Sound Transmission Loss of double-glazing windows. Modeling using both FEM and BEM. Comparison with experimental measurements. Discussion of a new type of double-glazing window system

Tuition

This course is not on the current schedule of open enrollment courses. If you are interested in attending this or another course as open enrollment, please contact us at (410) 956-8805 or at ati@aticourses.com and indicate the course name and number of students who wish to participate. ATI typically schedules open enrollment courses with a lead time of 3-5 months. Group courses can be presented at your facility at any time. For on-site pricing, request an on-site quote. You may also call us at (410) 956-8805 or email us at ati@aticourses.com.

ATI Courses - Applied Technology Institute Training Seminars ·
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E-mail: ati@aticourses.com