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An Experimental Investigation of Brake Rotor DTV under Laboratory Conditions – Part 2
Technical Paper
2009-01-3044
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This study continues work from SAE Technical Paper 2008-01-2543 [1] that demonstrated a laboratory technique for comparing brake hardware designs and evaluating the propensity for brakes-off DTV generation. The previous study compared two brake designs, including the original brake hardware (Design-A) that experienced rapid DTV growth and a later brake iteration (Design-B) which was introduced as a brake shudder fix. Measurements of both brake designs identified different piston retraction and slide loads whilst a friction material change was also noted, however no attempt was made to quantify the effect of these design changes.
The current study has been expanded to re-evaluate the same brake hardware and identify the contribution of each design change to DTV generation. The primary focus of this investigation was to analyse test samples that rapidly developed DTV as these failures cause warranty issues.
56 test results concluded that slide load was not a significant contributor to DTV generation. Further analysis applying a chi-square test established a p-value of 0.03 for friction material and a p-value of 0.002 for retraction.
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Citation
Backstrom, A., "An Experimental Investigation of Brake Rotor DTV under Laboratory Conditions – Part 2," SAE Technical Paper 2009-01-3044, 2009, https://doi.org/10.4271/2009-01-3044.Also In
References
- Backstrom A. An experimental investigation of brake rotor DTV under laboratory conditions SAE 2008-01-2543
- Börjesson M Ericksson P Kuylenstierna C Nilsson P H Hermansson T The role of friction films in automotive brakes subject to low contact forces IMechE C444/026/93 1993 259 267
- Suganuma Y. Howse F. Thornton C. Dynamometer simulation study for market barke judder SAE 2001-01-3191
- Edmonds D. E. Malosh J. B. Yoko T. Disc thickness variation generation: dependence n presence of road vibration SAE 2005-01-2318
- Okamura T. Imasaki M. Design for homogeneity of brake discs to reduce judder, from R&D manufacturing SAE 2007-01-3961
- Nukumizu K. Makizono K. Abe T. Unno M. Influence of rust accumulation on disk rotor on friction properties of disk brake SAE Technical Paper 2007-01-3937
- Swift R. A. Walmsley M. Multi-body dynamic simulation for the evaluation of disc brake slide forces SAE 2001-01-3131 2001
- Tao J. J. Chang H. T. A system approach to the drag performance of a disc brake caliper SAE 2003-01-3300
- Cho K. Han J. Jang H. Kim S. Lee J. Park D. Oh J. Lim J. Corrosion induced brake torque variation: The effect from grey iron microstructure and friction materials SAE Technical Paper 2005-01-3919
- Horne D. M. A system approach to the development of low runout corner modules that are robust to wheel clamp-up effects 2001 SAE 2001-01-3159
- Anwana O. Cai H. Chang H. Analysis of Brake Caliper Seal-Groove Design SAE Technical Paper 2002-01-0927
- Cai H. Anwana O. Seal/Groove Performance Analysis Models SAE Technical Paper 2002-01-2588