internoise 2018

Short Training Courses

Short Course #1: INCE Fundamentals Exam Prep Course

Sunday, 26 August (morning and afternoon)

Time: 8:00 am – 12:00 pm (course), 1:00 pm (fundamentals exam)

Cost: $200

Location: TBD

James D. Barnes

Description: The INCE Fundamentals Exam may be used in partial fulfillment of the requirements for INCE Membership. A review session will be conducted from 8 am – 12 pm to prepare for the exam. The exam will then be offered beginning at 1 pm. Please note that when registering for this course, you will be asked to upload a digital photo.

Short Course #2: Noise Control in Ducts

Sunday, 26 August (full day)

Time: 8:00am – 5:00pm

Cost: $200

Professor Tamer Elnady
Vice Dean for Education & Student Affairs
Head of Design and Production Engineering Department
Professor, Group for Advanced Research in Dynamic Systems (ASU-GARDS)
ASU Sound & Vibration Lab.
Faculty of Engineering, Ain Shams University
1 Elsarayat St.
Abbaseya, 11517 Cairo, Egypt

Professor Mats Abom
The Marcus Wallenberg Laboratory
The Royal Institute of Technology (KTH)

Description: Acoustic design of mufflers is often required for diagnosis, design validation and quality control. Typically, design engineers require some basic theory, familiarization with the suitable terminology, and choice of instrumentation and testing configuration.

Course Objectives:

  • Give an overview of the underlying theory of acoustic simulations of mufflers
  • Give an insight into muffler design principles
  • Give an insight into experimental methods
  • Demonstrate the use of software for acoustic two-port analysis (both low and high frequency)
  • Calculation of the pressure drop of muffler systems using two-ports

The Course: This course provides a brief overview of the low frequency behavior of mufflers including a description of the two-port theory. The course covers both the simulation of muffler system acoustics as well as the measurement of muffler 2-port data using the two-source location technique. The main focus is on exhaust mufflers for IC-engines but most of the information given is applicable to any pipe or duct system. In addition, the course will introduce 3D FEM analysis coupled to two-port modeling to extend the frequency range for larger mufflers. Two-port models can also be used to analyze duct networks in the high frequency range based on acoustic power flow; e.g. HVAC ducts. This is also treated in the course together with two-port models for analyzing pressure drop in duct systems.

The course comprises lectures and hands-on software examples where all attendants will have the opportunity to actively participate in both the measurements and simulations.

Who Should Attend: Engineers, students 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.