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Pump Noise Reduction Using Shainin Statistical Engineering Methods
Technical Paper
2001-01-1542
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Historically, pump noise can be a contributor to customer dissatisfaction with automatic transmissions. In this paper, a Shainin experiment was conducted to identify all probable root causes for pump noise on a production RWD transmission. Sample transmissions were selected following subjective evaluations. Noise was objectively measured in the lab using a microphone and an accelerometer. The study was conducted following a systematic Shainin statistical engineering methodology, which included the following major steps: selection of the test measure using the isoplot technique, selection of Best of Best (BOB) and Worst of Worst (WOW) transmissions, assessment of assembly variation, component search, and pair-wise comparisons. The study successfully highlighted the key variables on the drive gear involute profile, which are now being tightly controlled for improved noise characteristics.
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Citation
Standring, J. and Malisetty, P., "Pump Noise Reduction Using Shainin Statistical Engineering Methods," SAE Technical Paper 2001-01-1542, 2001, https://doi.org/10.4271/2001-01-1542.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
- Tilley, L. K. “Shainin Statistical Engineering - Introductory Statistical Engineering Training Program” Daimler Chrysler Internal Document October 6 1997