Vehicle Noise Control Engineering Academy - Powertrain Noise Track     

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I.D.# ACAD02Printable Description
Duration: 5 Days
October 27-31, 2014 (8:00 a.m. - 8:00 p.m. ) - Troy, Michigan  

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This Engineering Academy covers a variety of vehicle noise control engineering principles and practice. Two specialty tracks are available: Vehicle Interior Noise and Powertrain Noise. While the Vehicle Interior Noise track focuses on the understanding and application of acoustical materials to optimize NVH in the passenger or operator compartment of a vehicle, the Powertrain Noise track focuses on NVH issues generated by powertrain noise sources and the design strategies to minimize them. Noise sources include engines, transmissions/transfer cases, accessories, exhaust, gears, axles, joints, and couplings. Considerable attention is given to current measurement and instrumentation technologies and their effective use.This Engineering Academy covers a variety of vehicle noise control engineering principles and practice. Two specialty tracks are available: Vehicle Interior Noise and Powertrain Noise. While the Vehicle Interior Noise track focuses on the understanding and application of acoustical materials to optimize NVH in the passenger or operator compartment of a vehicle, the Powertrain Noise track focuses on NVH issues generated by powertrain noise sources and the design strategies to minimize them. Noise sources include engines, transmissions/transfer cases, accessories, exhaust, gears, axles, joints, and couplings. Considerable attention is given to current measurement and instrumentation technologies and their effective use.

Practical Component
This Academy includes several equipment demonstrations and hands-on lab sessions. Specific instrumentation suppliers have been selected to 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 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
  • 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 who address powertrain noise in the following types of vehicles:

  • Passenger cars
  • Light trucks
  • Heavy trucks
  • Off-highway vehicles
  • Farm machinery
  • Small planes
  • Personal watercraft
  • Rail transit vehicles

Topical Outline

PRE-ACADEMY

  • 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 on October 14.
  • 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

  • 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 demonstration (both tracks combined)
  • Engine NVH Mechanisms-1
    • Slider/Crank dynamics: Order numbers
    • Intake and exhaust noise
    • Duct acoustics: Tuned elements
    • Crankshaft and combustion noise

DAY TWO

  • Engine NVH Mechanisms-2
    • Piston and engine cover noise
    • Engine covers
    • Valvetrain noise
    • Gear and chain noise
  • 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
  • Powertrain Instrumentation Workshop (evening)

DAY THREE

  • 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
  • Both tracks combined OEM Facility Tour (evening)

DAY FOUR

  • 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
  • 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 Wrokshop/Demo (evening)

DAY FIVE

  • Diesel Engine Noise Sources and Control
    • Combustion excitation in diesel engines
    • Mechanical forcing functions
    • Reducing diesel engine noise
  • System Integration
    • Combining sub-systems and components
    • Overview of common automotive noise issues and their control
  • Team Discussion: Learning Assessment activitiy, and Adjournment

    Instructor(s): Michael Albright; Gabriella Cerrato; Mike Grimmer; Art Howie; Tom Reinhart; Alan Stuart

    Alan D. Stuart, Ph.D., Lead Instructor, Lead Instructor, is an Associate professor emeritus of acoustics at Penn State. For over 25 years, 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 received a BSME from Pratt Institute, an MSEE from New York University, and a Ph.D. in Engineering Acoustics from Penn State.

    Michael 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.

    Gabriella Cerrato is President of Sound Answers Inc., an engineering consulting firm in noise and vibration. Gabriella has more than 25 years of 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.

    Michael 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 for over 20 years 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 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.

    Thomas 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.

    Fees: $3345.00 ; SAE Members: $2676.00 - $3011.00

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

    To register, click Register button at the top of this page and submit the online form, or contact SAE Customer Service at 1-877-606-7323 (724/776-4970 outside the U.S. and Canada) or at CustomerService@sae.org.