NOISE, VIBRATION AND HARSHNESS
• 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:
−− Vehicle noise sources −− Road and wind noise −− Miscellaneous noise sources −− Noise control solution - source, path, receiver −− Noise control system using sound package materials • Materials for Vehicle Noise Control −− Absorber, including case studies and test methods −− Barrier, including case studies and test methods and the effect of holes −− Damper, including case studies and test methods −− Isolator • Different Automotive Measurements −− Vehicle −− Component −− Material
• Passenger cars • Light trucks • Heavy trucks • Off-highway vehicles • Farm machinery • Small planes • Personal watercraft • Rail transit vehicles
Instructor: Fee: $1415
Pranab Saha
1.3 CEUs
URL:
sae.org/learn/content/92032/
Topical Outline PRE-ACADEMY
Vehicle Noise Control Engineering Academy - Powertrain Noise Track 5 Day | Classroom Seminar I.D.# ACAD02 This Engineering Academy covers a variety of vehicle noise control engineering principles and practices. 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 for an instrumentation workshop on one evening. There is also a field trip to one of the OEM’s noise and vibration facilities 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
• The SAE Pre-Academy is a totally optional offering that in no way affects your participation in the SAE Vehicle Noise Control Engineering Academy. • 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
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3 ways to get a no-obligation price quote to deliver a course to your company: Call SAE Corporate Learning at +1.724.772.8529 | Fill out the online quote request at sae.org/corplearning | Email us at corplearn@sae.org
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