| HOT JUDDER SIMULATION OF A VENTILATED DISC AND DESIGN OF AN IMPROVED DISC USING SENSITIVITY ANALYSIS |
| J. H. PARK1, Tae Won Park1, J. H. LEE1, M. H. CHO2 |
1Ajou University
2Hyundai Mobis |
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| ABSTRACT |
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In a disc brake system, thermal expansion of the material is caused by friction energy that is generated by the sliding contact between a disc and pad during braking. This phenomenon, thermo-elastic instability, can lead to hot spots on the disc surface and a hot judder phenomenon. Transient finite element analysis has been used to simulate this phenomenon. Three dimensional finite element models of a disc, pad, and cylinder were created. Each part was connected by a joint. Contact condition was applied to the disc and pad with a friction coefficient ( |
| Key Words:
Hot judder, Sensitivity analysis, Hot spot, Thermoelastic instability, Intermedate processor, Thermomecahnically coupled system |
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