May 20-23, 2013
Grand Rapids, Michigan, USA
DeVos Place Convention Center
Chat With the Experts
Tuesday, May 21; 1:00 - 2:00 p.m.
Wednesday, May 22; 1:30 - 2:30 p.m.
Tuesday, May 21 - 1:00 - 2:00 p.m.Wade R. Bray, Vice President, HEAD Acoustics
Sound Quality methods and tools, and human perception
Wade Bray has more than 30 years of experience in a variety of areas of acoustics, including automotive and Information Technology sound quality, musical instruments, churches and performing arts venues, theatre sound system and electroacoustic enhancement system design, and loudspeaker and teleconferencing acoustics. He holds patents in the fields of electronic acoustic enhancement systems and open-loop electromechanical positioners. He is active in the SAE Noise and Vibration General Committee (organizing the Instrumentation papers sessions and the Sound Quality Workshop since its inception), also the Impulse Noise Task Force and Brake NVH Standards Committee.
Since 1987 he has been active in North American activities involving the technologies of HEAD acoustics GmbH of Herzogenrath, Germany, serving as Vice President of the former Sonic Perceptions, Inc. and its successor, HEAD acoustics, Inc. of Brighton, Michigan, where as technical officer he provides customer training and support.
Prior to this he was a senior consultant at Jaffe Acoustics, Inc. (now Jaffe Holden) in Norwalk, Connecticut, where his research efforts centered on electronic variable acoustic systems for performing arts venues and full-duplex concealed audio teleconferencing systems for boardrooms and large conference rooms. An organist, he also served at Jaffe as the internal consultant on pipe organ acoustics.
Educated at Arizona State University, Wade earned a Bachelor of Arts in English and Bachelor of Science in Physics, with additional studies in psychology, music and acoustics. He is a member of the Acoustical Society of America, Society of Automotive Engineers and Institute of Noise Control Engineering (INCE), serving as Technical Advisory Board chair for Perception and Effects of Noise and participating in the Information Technology and Product Noise Emissions working groups.Bernard Challen, Shoreham Services
Powertrain noise and vibration measurement, design and optimisation
Bernard is an independent engineering consultant, working with clients around the world, operating mainly in the automotive industry sector. He has experience of a range of technology areas including internal combustion engine design, development and application; automotive electronics and the technologies involved with powertrain and vehicle noise and vibration, instrumentation, measurement and control and CAE technical development and implementation policy.
He is an Advocate of modern systems engineering and mathematical modelling. Active in various professional engineering societies, he has served as a Director of SAE International, where he was awarded the SAE Medal of Honor in 2008. He is a Royal Academy of Engineering Visiting Professor in the Principles of Engineering Design at the University of Sussex.
His career has spanned over 40 years in the automotive industry, involved with powertrain design, development and testing. A one-time Technical Director at Ricardo Consulting Engineers in Shoreham, he was responsible for the formation of their North American activities. He has been an independent consultant, working with clients around the world, since 1991.Matt Maunder, Technical Specialist, Powertrain NVH, Ricardo UK Ltd
Sound Quality Engineering for Turbocharged Sports Cars
Turbochargers tend to cut intake and exhaust noise by around 15dB, because the pressure differences across compressor and turbine constitute strong mismatches of acoustic impedance. This situation hinders the delivery of sporty sound that customers expect from high performance vehicles. A lack of sporty sound can severely compromise the image of a sports car "halo" product, leading to lost sales and damaged brand image.
These implications can be avoided using the following approaches:
*The minimal use of exhaust muffling (although care must be taken with pass-by noise)
*The use of an intake sound generator system to carry sound directly from the pressurised intake manifold to the passenger compartment
Such approaches can be developed initially using one-dimensional gas dynamics simulation, and subsequently using compressed hardware development.
- Bachelor Degree in Engineering Acoustics and Vibration, ISVR, Southampton University
- Languages: English (mother tongue), French and German (basic)
- Technical Specialist, Powertrain NVH since 2008
- Chief Engineer, Sound Engineering, Ricardo since 2006
- Principal Engineer, Sound Engineering, Ricardo since 2000
- Project Engineer, Powertrain and Vehicle Refinement, Ricardo since 1992
- Coordinator and technical direction for numerous sound quality engineering projects for a wide range of vehicles in Europe, USA and Asia
- Intake and exhaust system development, including sound generators
- Powertrain mounting system development
- Engine structure development
- Development of advanced engineering techniques to support sound quality engineering
- Time domain transfer path analysis
- Ricardo Interactive Subjective Assessment (RISA)
- Advanced sound editing
- Author of many technical conference papers on sound quality engineering and related topics
My topic areas are wide ranging and include, in no particular order, sound intensity, frequency spectra and their interpretation, torsional vibration, shock spectra, human biodynamics, filtering and algorithm development.
Prior to graduating from the Aerodynamics Department at Southampton University, UK, I worked on advanced aircraft at the then English Electric Aviation Ltd, later called BAe Systems. During my degree course I undertook a vibration project which it turns out initiated the path of my future career. Immediately upon finishing the undergraduate phase I joined the Institute of Sound and Vibration Research (ISVR) as their first post graduate student. This involved more aircraft vibration work. Upon completing the Ph D my next step was becoming an academic staff member of the Computer Department. This opened up all sorts of possibilities in learning various computer skills as I had to teach them! After a year or two I transferred back to the academic staff of ISVR as my deeper interests still related to vibration but now it was how to capture and analyse analogue data in the digital world. It was an exciting time in the early days of the FFT algorithm. This lead to the formation of the ISVR Data Analysis Centre; which boasted a pair of parallel 12 bit ADCs both operating at a 40k sample rate together with a then high speed 24bit computer. Work at that time included the Concorde aircraft, the Saturn moon launch vehicle, electricity generators, ships, engines, vibration effects on people and a little bit on land vehicles. The later topic grew significantly.
After several years my appetite for undergraduate teaching waned as giving the same course for many years may not be many years' experience but one year's experience many times. My signal processing interests continued to grow, and by this time there were people seeking analysis from all over the University and many from outside. The net result was my agreed departure and the formation of what is now Prosig Ltd, which is where I still remain finding new technical challenges every week.
Algorithm development, data acquisition, signal processing, analogue electronics, and computers remain my weekly diet. This is increasingly on helping people with less experience on how to capture, analyse and most importantly to interpret and understand the results - so after all I attempt to remain a teacher and "passer on" of knowledge!
Wednesday, May 22 - 1:30 - 2:30 p.m.
Martin Romzek, Eberspecher North America
Active Sound Exhaust Technology
Studies/Professional experience: BSME, University of Michigan-Ann Arbor, MI 1989-1993
Detroit Diesel Corporation-Redford, MI 1991-2000
Eberspaecher North America, Inc. 2000-present
Actual Responsibilities and Research Interests
Head of R&D, North America
Responsibilities: CAE/Testing/Advanced Development & Prototyping for exhaust system development
Society of Automotive Engineers (SAE), Manufacture of Emissions Controls Association (MECA)
SAE 2003-01-1645: Exhaust System Design for Sound Quality
SAE 2005-01-3702, SAE 2006-01-3444, SAE 2007-01-1578, SAE 2007-01-1088, SAE 2007-01-0467, SAE 2008-01-0612, SAE 2009-01-0624, SAE 2010-01-1215, SAE 2012-01-0643, SAE 2013-01-0510
Feature Articles/Media Publications
The Detroit News: Auto supplier believes in diesels - Feb 15, 2005
Business Wire: Eberspaecher Puts Speakers into Car Mufflers - Jul 21, 2008
Wards Automotive: Eberspaecher to expand SCR Production for Heavy-Duty Diesels - Nov 26, 2008
SAE Automotive Engineering Online: Emissions system gets virtual assist - Jan 6, 2009
SAE Off-Highway Engineering Online: Dialing in diesel emissions solution - Jul 30, 2009
US Patent No. 6,508,237 - Exhaust gas recirculation transient smoke control
US Patent No. 6,457,461 - EGR and VGT system diagnostics and control
US Patent No. 6,363,922 - Exhaust gas recirculation pressure differential sensor error compensation
US Patent No. 5,890,467 - Method for internal combustion engine start-up
Shanjin Wang, Powertrain NVH Expert, Renault
Topic / Abstract:
Design and simulation methodologies for optimization of powertrain NVH
New technologies for best compromise between NVH and CO2
Specific NVH features of electrical engines
Challenges and technical road-maps for new pass-by-noise regulation
Studies / Professional experience:
PhD, Ecole Centrale Paris, 1986-1990
GKN France, NVH test manager, 1990-2000
Renault Powertrain Engineering, since 2000
Actual Responsibilities and Research Interests:
Powertrain NVH Expert since 2011. Main responsibilities:
- Orientation of powertrain NVH strategies in the future
- Development of powertrain NVH core competencies (simulation and measurement methodologies)
- Validation of solutions for major powertrain NVH problems
- Definition of new technical policies for best compromise between NVH, CO2 and other customer requirements
Jim Nieters, Principal, Sound Resources II, LLC
Please bring your recent measurement challenges to the table for discussion. Whether the challenge be the test environment (temp, humidity, air velocity, thermal radiation, off-axis high amplitudes, changing conditions, dynamic range and so forth) or the device under test or other considerations, our expert and other participants will be eager to weigh-in on potential solutions.
James M. Nieters, PE, BSME 1976, Washington University, SAE member since 1975.
Jim has worked in applications as wide ranging as acoustic emission testing and monitoring, modal analysis, nuclear systems seismic qualification, vibration testing, building noise and vibration control, architectural acoustics, product noise and noise certification, sound quality, vehicle exterior noise and windtunnel testing. He has worked with, or consulted with most manufacturers of sound and vibration instrumentation helping develop, market and apply transducers, cabling, signal conditioners, analysis systems and software.
Tom Reinhart, Institute Engineer, Southwest Research Institute
Diesel Engine NVH
Please bring your recent diesel engine NVH challenges to the table for discussion. Combustion noise, mechanical noise (including gear rattle), measurement techniques and analysis techniques are all fair game for discussion.
Thomas E. Reinhart, BSME 1976, MSME 1980 Purdue University, SAE member since 1980.
Tom has been involved with diesel engine noise since grad student days, when his thesis topic was the then-new acoustic intensity technique for identifying and quantifying noise sources. He has 20 years of experience at Cummins, including 13 years as the manager / director of the NVH lab. Tom also managed the powertrain NVH lab at Roush Industries in Livonia, MI. Tom has been at SwRI since 2005. He has extensive experience with both experimental and analytical approaches to engine noise issues, and has worked on applications ranging from rail and marine to construction machines to pickup trucks.
At SwRI, Tom's projects include engine and powertrain NVH, diesel engine design and development projects, and projects to explore fuel efficiency technologies for diesel engines and trucks.