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Disc Thickness Variation Generation: Dependence on Presence of Road Vibration
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 16, 2005 by SAE International in United States
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This paper illustrates the importance of road vibration in the study of disc thickness variation generation in disc brake rotors, showing that laboratory conditions must include vibration as well as realistic reproductions of speeds, pressures, and inertia, etc. Such conditions are made possible with the Bosch Road Load Dynamometer (RLD). A related paper, Road Load Dynamometer: Combining Brake Dynamometry with Multi-Axis Road Vibration, SAE 2003-01-1638, showed that the RLD could accurately and repeatedly reproduce field conditions, but did not contain disc thickness variation (DTV) generation data. This paper contrasts rotor wear data for a controlled experiment on the RLD, with and without vibrational input. In the control group, DTV generation data comparable to vehicle test results were recreated. In the experimental group, similar hardware was subjected to the same tests except for the absence of vibration input. The differences in the results clearly illustrate the importance of vibrational inputs for laboratory DTV generation tests.
CitationEdmonds, D., Malosh, J., and Yoko, T., "Disc Thickness Variation Generation: Dependence on Presence of Road Vibration," SAE Technical Paper 2005-01-2318, 2005, https://doi.org/10.4271/2005-01-2318.
- Edmonds, D.E. Malosh, J.A. Road Load Dynamometer: Combining Dynamometry with Multi-Axis Vibration Testing SAE Paper 2003-01-1638
- Ford Corporate Engineering Test Procedure CETP 06.00-R-410 Detroit Suburban Traffic Route-Brake roughness and Noise Evaluation-Key Life Test (KLT)