This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Validating NVH EOL Measurements using GR&R
Technical Paper
2012-01-1536
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Gauge R&R (GR&R), as defined through Measurement Systems Analysis (MSA), has long been an accepted technique to validate the consistency of a measurement system (gauge), whether it is in the lab or used in end of line (EOL) applications. The analysis process, defined by Automotive Industry Action Group (AIAG), is typically applied to an attribute that is inherently stable and repeatable, and a measurement process that is just as robust and single valued, e.g. measuring the diameter of a part with a caliper. In the world of NVH, the parts are stable and the measurement system is robust; however, the measured results are not as repeatable as desired due to the nature of the system. In the NVH realm, the results are typically multi-value, e.g. an order slice vs. RPM. How is a traditionally single value process applied to a multi-value result, pick 1 point? An additional challenge to the traditional MSA analysis is that it requires a linear amplitude relationship of the measured result.
This paper will highlight the application of an alternate AIAG referenced process to perform a GR&R of NVH results. Benefits noted of the alternate method will show how it can be used with multi-value results and use statistical math that is compatible with NVH data and analysis. Also covered is a review of the amplitude relationship of NVH data and a description of the various results available for interpreting the validation of the EOL stand. At the conclusion, a short case study will be reviewed highlighting the topics covered.
Recommended Content
Book | Vehicle Noise, Vibration, and Sound Quality |
Book | Road Vehicle Dynamics |
Instructor-Led Training | Automotive NVH Analysis and Control |
Authors
Citation
Frenz, E., Smith, G., Rivera, R., and Morales, J., "Validating NVH EOL Measurements using GR&R," SAE Technical Paper 2012-01-1536, 2012, https://doi.org/10.4271/2012-01-1536.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- ASTM “Standard Practice for Conducting an Inter-laboratory Study to Determine the Precision of a Test Method” ASTM E691-09 www.astm.org
- Pooled Standard Deviation - Full reference
- AIAG “Measurement Systems Analysis (MSA) Reference Manual - Fourth Edition” Chrysler, Ford, GM, Fourth Printing 2010 www.aiag.org
- GR&R Average and Range - Chapter III, section B 103
- GR&R ANOVA - Chapter III, section B 123
- GR&R Pooled Standard Deviation - Chapter IV, Section H 185
- AIAG “Statistical Process Control (SPC) Reference Manual” Chrysler, Ford, GM, Second Printing 1995 www.aiag.org
- Control Charts - Chapter II, Section 2 65
- Besterfield, Dale H. PH.D., P.E. Quality Control Sixth 243 250 Prentice Hall 2001 0-13-025668-4
- Diamond, William J. Practical Experiment Designs for Engineers and Scientists Third John Wiley & Sons, Inc. 0-471-39054-2 2001
- Cerrato, Gabriella Goodes, Paul R “Practical Approaches to Solving Noise and Vibration Problems,” Sound and Vibration Magazine April 2011