Vehicle Noise Control Engineering Academy - Vehicle Interior Noise Track ACAD01

Topics: Quality, Safety & Maintenance

The Vehicle Noise Control Engineering Academy covers a variety of vehicle noise control engineering principles and practices. There are two concurrent, specialty tracks (with some common sessions): Vehicle Interior Noise and Powertrain Noise. Students should choose and register for the appropriate track they wish to attend.

The Vehicle Interior Noise track focuses on understanding the characteristics of noise produced by different propulsion systems, including internal combustion, hybrid and electric powered vehicles and how these noises affect the sound quality of a vehicle’s interior.  The Vehicle Interior track presents relevant numerical analysis techniques and sound package (acoustical) materials that can be used to optimize the vehicle interior acoustics characteristics.  Considerable attention is given to how acoustical materials work and to current measurement and instrumentation technologies and their effective use. 

Practical Component 
This Academy includes workshops on sound quality and on numerical methods.   In addition, specific instrumentation suppliers have been selected for an instrumentation workshop on one evening. There is also a field trip to one of the OEM's noise and vibration facility in the metro Detroit area. Through these activities, you become acquainted with relevant acoustic test facilities, instrumentation, measurement protocols, and problem solving strategies. 

Learning Objectives

By attending this Academy, you will be able to:

  • Define vehicle acoustics engineering terminology and principles
  • Identify different noise elements in electric vehicles from IC engine vehicles and the uniqueness of the EV propulsion system
  • Articulate the differences in various numerical techniques that are used for simulation
  • Discuss the importance of sound quality issues for EV and ICE propulsion units in developing a quality vehicle
  • Identify available acoustical materials and determine their optimum application
  • Recognize new materials that are used in sound package applications
  • Formulate a systematic approach to problem solving and measurement
  • Conduct appropriate performance verification tests
  • Analyze the contributing vehicle noise sources when devising noise solutions
  • Produce valid measurements with noise instrumentation and accurately interpret results

Who Should Attend

This academy will be especially valuable for engineers who address interior noise in the following types of vehicles: passenger cars and autonomous vehicles, light trucks, heavy trucks, off-highway vehicles, farm machinery, small planes, personal watercraft, and rail transit vehicles.

You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.

  • The SAE Pre-Academy is a totally optional offering that in no way affects your participation in the SAE Vehicle Noise Control Engineering Academy. Access to the Pre-Academy web site will be available to all registrants about a week prior to the start date.
  • The SAE Pre-Academy consists of 2-1/2 hours of web-based lessons that can be accessed at your convenience. These lessons provide an overview of basic sound and vibration concepts that are the foundation of noise control engineering. It is intended mainly for those new to the field of noise control, while providing a refresher for those more experienced in the field. In addition to the video lessons, a series of self-assessment questions are provided with solutions furnished upon request.

Day One AM
  • Introduction
    • EV powertrain noise generating mechanisms
    • Acoustic masking
    • Human perception and sound quality of EV noise
    • Target setting for EV noise
  • Mechanical Sources
    • Gear whine
    • Bearing noise
    • Rotating imbalance
    • Driveline clunk
  • Electromagnetic Sources
    • Rotor/Stator forces
    • Inverter switching noise
    • Battery contactor noise
  • EV Noise Quantification
    • Measurement methods
    • CAE processes
    • Test / CAE correlation
Day One PM
  • Numerical Methods and Modeling
    • Methods for predicting vehicle interior noise
    • Boundary and finite element modeling
    • Statistical energy analysis
    • Modeling of mufflers and resonators
  • Numerical Acoustics Workshop/Demonstration (evening – both tracks combined)
Day Two AM
  • Sound Quality (both Tracks Combined)
    • Definition of sound quality
    • The perception of sound
    • Factors associated with sound quality
    • Instrumentation for sound quality
    • Jury testing and correlation with objective analysis
  • Sound Quality Workshop/Demonstration (at lunch time both tracks combined)
Day Two PM
  • Sound Quality
  • Modal Analysis
    • Modes in 1-, 2-, 3- dimensions
    • Modes and resonant frequencies
    • Modal measurements
Day Three AM and PM
  • Instrumentation - Sound and Vibration Sensors
    • Microphones
    • Intensity probes
    • Accelerometers
    • Laser vibrometers
  • Instrumentation - Sound Level Meters and Analysis
    • Types of sound level meters
    • A- and C- weightings
    • Fast, Slow, and Impulse Responses
    • Octave-band analysis
    • FFT spectrum analysis
Day Three PM
  • Vehicle Interior Noise-Related Topics
    • Automotive noise issues
    • Different types of measurements
  • Test Facilities and Measurements
    • Reverberation room
    • Anechoic/hemi-anechoic room
    • Various measurements done in these facilities
Day Three Evening
  • Both tracks combined OEM Facility Tour (evening)
Day Four AM
  • Source-Path-Receiver System
    • The noise system
    • The noise control system
    • Standards
  • Introduction to Sound Package Materials
Day Four PM
  • Acoustical Materials and Test Methods
    • Absorbers
    • Barriers
    • Case examples
  • Both Tracks Combined - Instrumentation Workshop/Demo (evening)
Day Five AM
  • Acoustical Materials and Test Methods
    • Dissipative systems
    • Dampers
    • Isolators
    • Case examples
  • Squeaks and Rattles – Types and Causes
Day Five PM
  • Component Measurements
    • Sound intensity mapping
    • Other measurements
  • Team Discussion
    • Review, question and answer
    • Learning Assessment activity, and
    • Adjournment
Pranab Saha; Gabriella Cerrato; Greg Goetchius; Patricia Manning; Alan Stuart

Pranab SahaPranab Saha, Lead Instructor is an entrepreneur, co-founder, and a Principal Consultant of Kolano and Saha Engineers, Inc., an independent professional engineering and consulting company in acoustics, noise, and vibration. A well-known authority on automotive noise, body interior systems, and sound package materials, Dr. Saha has directed and participated nationally and internationally in numerous advanced noise control engineering programs and training seminars for various OEM companies and their suppliers in three different continents. Dr. Saha is an active member of SAE International, ASA, ASME, ESD, INCE-USA, and NSPE/MSPE. He is the past Chair of the SAE Engineering Meetings Board, SAE Noise and Vibration Conference, SAE Acoustical Materials Committee, and the past contributing editor of Sound and Vibration magazine. He has written a document on how to write an SAE technical paper, has helped develop several SAE standards in acoustics, is a Professional Development Instructor, and Lead Faculty Member of the SAE Vehicle Interior Noise Academy. He has presented technical papers and has organized and chaired numerous technical sessions sponsored by SAE and other professional organizations. Dr. Saha has also won several awards presented by SAE International, the Michigan Society of Professional Engineers (MSPE), and the Engineering Society of Detroit (ESD). He is an INCE-USA Board Certified Member, a Fellow Member of SAE International and ESD, and has been named an SAE Master Instructor. Dr. Saha holds a Ph.D. in Mechanical Engineering (Acoustics Specialty) from Georgia Institute of Technology.

GabriellaGabriella Cerrato is President of Sound Answers Inc., an engineering consulting firm in noise and vibration. Since 1993 Gabriella has been acquiring experience in measuring, troubleshooting and predicting noise and/or vibration in a variety of different systems and products. At the beginning of her career, she was involved with environmental noise impact measurement and prediction (from air and ground vehicular traffic and from infrastructures). She then joined the Active Noise and Vibration Control group at FIAT, where she was responsible for the design of the acoustic systems for active control in the cabin and in the exhaust of passenger vehicles. This led her to a position in the Consulting group of Structural Dynamics Research Corporation (SDRC, later acquired by MTS Systems Corp) in Detroit, MI, where she worked on the sound quality of various vehicles and automotive subsystems and where she developed sound quality target procedures. At Sound Answers, she has led the engineering team since 2005 through several consulting projects for industry customers and for DoD customers through SBIR (Small Business Innovation Research) projects. Gabriella has authored over 40 papers for conferences and magazines, has chaired sessions at SAE, Inter-Noise and Noise-Con conferences and is a member of several professional organizations (SAE, AIAA, AES, IEEE). Gabriella has a Doctorate in Theoretical Physics from the University of Torino, Italy.

GregGreg Goetchius   was previously the NVH Engineering Manager at Lucid Moors and was responsible for the NVH development of the Lucid Air premium electric vehicle. In addition, he had system engineering responsibility for the audio system of the Lucid Air. His prior experience includes: the NVH Team Manager with Tesla Motors where he was responsible for the design, development and post launch NVH performance of the Tesla Model S and the development of the Tesla Model X NVH strategy; the Global Director of Research and Development at Material Sciences Corporation (MSC), where he led a global engineering team in supporting the implementation of MSC’s various acoustical products, including “Quiet Steel”; and working in the NVH department at Chrysler for 15 years, focusing his efforts on advanced NVH methodologies, target setting and NVH CAE. Greg is past General Chair of the SAE International Noise and Vibration Conference and past Chair of the SAE Automotive Chassis Activity (ACA). Greg is a recipient of SAE’s Forest R. McFarland Award. He has a Master’s degree from University of Michigan and a Bachelor’s degree from Carnegie Mellon University.

Patricia Manning Patricia Manning started her career doing modal analysis at Lawrence Livermore National Laboratory in California, where she learned that neither test nor analysis is ever 100% correct. She then went back to MIT to get her PhD in acoustics and began working for Cambridge Collaborative, doing acoustical modeling and testing in many industries including automotive, aerospace, ship-building, heavy machinery, and consumer products. One of her recent jobs was to help NASA design the Reverberant Acoustic Test Facility at Plum Brook. Dr. Manning currently does Statistical Energy Analysis modeling and acoustical testing, with a focus on practical solutions to real world problems.

Alan StuartAlan D. Stuart is an emeritus professor of acoustics at Penn State. Since 1993, he taught fundamentals of acoustics courses on both the graduate and undergraduate levels, as well as graduate courses on structural acoustics and applied acoustics. He has conducted numerous professional short courses on acoustics and vibrations and noise control engineering. At Penn State, he was the coordinator of the Summer Program in Acoustics and the Distance Education Program in Acoustics and received numerous awards for his contributions to Continuing and Distance Education. He is an active member of SAE, ASA, INCE and ASEE. Dr. Stuart designed, developed and narrated the Pre-Academy web-based lessons.

Duration: 5 Days
CEUs: 4.0

Format: Classroom

Event ID: LM39

Location: Troy, Michigan

Session Info:

8:00 a.m. - 8:00 p.m.

Fees: $2,499.00

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