Acoustic Design of Mufflers and Silencers
1-2 November 2011
Location: Hilton Garden Inn, St. Charles, IL
http://www.hiltongardeninn.com/
Objectives:
- Understand the underlying principles of mufflers and silencers
- Gain insight into muffler and silencer design concepts using SIDLAB™ and Virtual.Lab™
- Understand experimental methods for measuring muffler and silencer performance
- Design exercises for resistive and reactive mufflers using linear acoustic two-port analysis in the frequency domain using SIDLAB
- Flow analysis and pressure drop calculation of ducted flow systems and mufflers.
The Course:
This course provides a thorough introduction to the behavior of mufflers and silencers including a description of the two-port approach to muffler design. The course covers both the acoustic simulation of muffler and silencer systems and the use of experimental methods to measure muffler performance. The main focus is on IC-engine intake and exhaust systems, but most of the information is also applicable to any pipe or duct system. The course comprises lectures and hands-on software examples where all attendees will have the opportunity to actively participate in the use of SIDLAB™.
Who Should Attend:
Engineers and technical managers seeking a grounding in the principles of muffler design and an introduction to the use of muffler and silencer design software are ideal attendees. Companies that design, purchase, or manufacture muffler or silencer systems will benefit. A knowledge of basic acoustics will be assumed. Mathematics to engineering degree level is desirable but not essential.
Instructors:
Tamer Elnady, Ain Shams University, Egypt; Andy Seybert and David Herrin, University of Kentucky.
Course Outline
Day 1: Tuesday, Nov. 1 [9 a.m. – 5 p.m]
Sound Propagation in Ducts
Muffler Basics
Experimental Techniques
Introduction to SIDLAB ™
Day 2: Wednesday, Nov. 2 [9 a.m. – 5 p.m]
Modeling of Sound Propagation
Modeling of Flow Distribution
Application Examples
Hands-on exercises
The application cases will be handled as follows:
Attendees will be asked to work on the modeling of each case, supervised by the instructors. There will be a general discussion involving everyone in the last 10 minutes of the exercise. Every participant is encouraged to bring his own laptop to run SIDLAB™.
Course Fees and Registration
The course fee is $1,200 including handouts, lunches, coffee breaks and Tuesday's dinner. Please download the registration form and email the completed form to info@spectronics.net.
If you have any additional questions feel free to email info@spectronics.net.