Vehicle Noise Control Engineering Academy - Powertrain Noise Track ACAD02

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): Powertrain Noise and Vehicle Interior Noise. Students should choose and register for the appropriate Academy they wish to attend.

The Powertrain Noise track focuses on noise and vibration control issues associated with internal combustion, hybrid and electric powered vehicles. The vehicle in this case includes passenger cars, SUVs, light trucks, off-highway vehicles, and heavy trucks. Sources and controls addressed include those related to gasoline, diesel, and electromagnetic engines, transmissions/transfer cases, accessories, exhaust, mounts, dampers, gears, axles, joints, and couplings. Considerable attention, with in-class demonstrations, is given to current measurement and instrumentation technologies that are available to identify and analyze vehicle noise sources.

As part of this academy, you will receive the book, Acoustical Materials: Solving the Challenge of Vehicle Noise, by Pranab Saha.

Practical Component
This Academy includes several equipment demonstrations and hands-on lab sessions. Specific instrumentation suppliers have been selected for an instrumentation workshop on one evening. There is also a field trip to one of the OEM or supplier noise and vibration facilities in the metro Detroit area. Through these activities, you become acquainted with relevant instrumentation, measurement protocols, and problem-solving strategies.

Note: the actual OEM or supplier location may vary depending on current COVID-19 limitations.

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
  • Discuss the importance of sound quality issues for EV and ICE propulsion units in developing a quality vehicle
  • Articulate powertrain noise terminology and principles
  • 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 and technical staff who address powertrain 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
  • Internal Combustion Engine NVH Mechanisms-1
    • Slider/Crank dynamics: Order numbers
    • Intake and exhaust noise
    • Duct acoustics: Tuned elements
    • Crankshaft and combustion noise
  • 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
  • Internal Combustion Engine NVH Mechanisms-2
    • Piston and engine cover noise
    • Engine covers
    • Valvetrain noise
    • Gear and chain noise
Day Three AM
  • Powertrain & Driveline Noise Sources I
    • Transmission noise and shift quality
    • Driveline gear and bending noise
    • Axle noise control
    • Manual transmission noise
  • Elastomer Properties and Tuned Mass Dampers
    • Material testing and characterization
    • Tuned mass dampers: Design and applications
Day Three PM
  • Powertrain & Driveline Noise Sources II
    • Powertrain noise and vibration paths
    • Structural modes
    • Driveline arrangements and disturbances
  • Engine Mounting Systems
    • Engine mount types and functions
    • Vibration isolation and transmissibility
    • Isolation targets and frame consideration
    • Hydromounts
  • Accessory Drive Noise and Vibration
    • Belt and tensioner noise
    • Alternator noise
    • Steering system noise
    • Cooling system quieting
Day Three Evening
  • Both tracks combined OEM or supplier Facility Tour (location TBD) 
Day Four AM
  • NVH Signal Processing I
    • Sampling Fundamentals: Windows, Leakage and Aliasing
    • Calculating and Interpreting Spectral Analysis Functions -- Autopower; Crosspower; Derivative Functions: H1, H2, Coherence
    • Rotating Machinery Techniques -- Order Tracking; Adaptive Re-sampling
Day Four PM
  • NVH Signal Processing II
    • Multi-Input Multi-Output System Analysis with Applications -- Operating Deflection Shapes; Forces and Sources
    • Intro to Time/Frequency Analysis -- Spectrogram methods and interpretation; Time/Frequency filtering for rotating machinery; Wavelets made simple
  • Both tracks combined - Instrumentation Workshop/Demo (evening)
Day Five AM
  • Diesel Engine Noise Sources and Control
    • Combustion excitation in diesel engines
    • Mechanical forcing functions
    • Reducing diesel engine noise
Day Five PM
  • System Integration
    • Combining sub-systems and components
    • Overview of common automotive noise issues and their control
  • Team Discussion
    • Review, question and answer
    • Learning Assessment activity
    • Adjournment
Alan Stuart; Michael Albright; Greg Goetchius; Mike Grimmer; Art Howle; Tom Reinhart; Pranab Saha

Alan StuartAlan D. Stuart, Lead Instructor, 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.

Michael AlbrightMichael F. Albright is co-founder and General Manager of Signal.X Technologies, LLC, a firm specializing in NVH engineering and custom test and measurement application development. He brings over 20 years of NVH experience to the SAE Noise Academies team. His past positions include Business Development Manager for the NVH consulting group of LMS North America, Management and Project engineering positions at the Roush Anatrol Division of Rousch Industries, Inc. and Civilian engineering for the U.S. Navy. With experience predominantly in the automotive industry, Mr. Albright has addressed a very diverse range of noise and vibration control issues including Powertrain NVH, Vehicle NVH, Brake noise, Engine accessory noise, Driveline NVH, Test procedure and facility development, Test/CAE Hybrid simulation methods, as well as a host of manufacturing quality issues. Mr. Albright's degrees include a BSME from University of Cincinnati and MSME from Purdue University.

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.

Mike GrimmerMichael Grimmer is a Staff project engineer with the General Motors Powertrain Division at the GM noise and vibration laboratory in Milford, Michigan. Mr. Grimmer has worked for GM since 1998 in the powertrain noise and vibration area. His work has focused on noise requirement allocation technology; vehicle integration; engine design; noise development and problem solving of engine, transmission, and accessory systems; component bench test design; sound quality measurement and metric development; and signature analysis for engine defect detection. Mr. Grimmer received a B.S. in mechanical engineering from the University of Wisconsin-Madison and M.S. in mechanical engineering from the University of Michigan-Dearborn.

Arthur HowleArthur E. Howle is NVH Senior Technical Specialist, Roush Industries, Inc. Mr. Howle's career includes six years at a General Motors production facility and 27 years in vehicle development with Ford Motor Company. He has experience with many aspects of vehicle NVH, particularly powertrain and driveline related NVH including: front, rear, and all wheel drive architectures. He is an expert in the utilization of high tech testing and CAE to predict, identify, and solve difficult NVH issues. He has also been a major contributor to many advanced vehicle programs and launches. Mr. Howle has a BSME from General Motors Institute and a MSME from Ohio State University.

Tom ReinhartThomas Reinhart is Program Manager for NVH in the Engine, Emissions, and Vehicle Research division of Southwest Research Institute. Previous roles include Senior Manager for NVH at Visteon Chassis Systems, where Mr. Reinhart was responsible for the NVH analysis and development of axles, driveshafts, and power steering systems. From 2001 to 2004, he was NVH Program Manager at Roush Industries, Inc. where he was responsible for NVH testing and development of diesel and gasoline engines, as well as transmissions, axles and accessories. Diesel fuel system noise was a special focus of this work. Prior to Roush, he was Director of Noise & Vibration Technology at Cummins, Inc. Mr. Reinhart has been involved in solving noise and vibration issues in engines, as well as in a wide variety of engine applications, including pickup trucks, heavy duty trucks, construction equipment, and marine. Mr. Reinhart has developed noise reduction features for diesel engines, four of which have been patented. He has published 15 technical papers on Powertrain NVH topics. Mr. Reinhart received his B.S. and M.S. in mechanical engineering from Purdue University. He also spent a year studying automotive engineering at the Technical University of Hannover, Germany. His master's thesis focused on the application of acoustic intensity measurements to diesel engines.

Pranab SahaPranab Sahais 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 a Board Certified Member and Director of INCE-USA, 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.

Duration: 5 Days
CEUs: 4.0

Format: Classroom

Event ID: LM40

Location: Troy, Michigan

Session Info:

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

Fees: $2,541.00

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