Majority Rule-based Vibrational Signal Analysis Method for the Fault Diagnosis of Rolling-Element Bearing of Vehicle Brake Tester

Abstract

Vehicles with different weights are subjected to vehicle brake tests at vehicle inspection stations atregular intervals due to government regulations. Safety and efficacy of vehicle roller brake testers areimportant for reliable inspections at vehicle inspection stations. Over time, mechanical faults occur inthese vehicle roller brake testers. Failure of the rolling-element bearing used in vehicle roller braketesters is one of the most common faults. In this study, total energy, mean, variance, cross-correlationand correlation coefficient values of median filtered signals were calculated based on the signalsobtained using real-time vibration measurement data of rolling-element bearings used in a vehicle braketester. With this study, it has been confirmed that, with use over time, the values acquired by all themethods go up and exceed the thresholds identified. Proposed majority rule based combined excessionof these thresholds expresses that the rolling-element bearing used in a vehicle roller brake tester is tooclose to a mechanical fault.

Keywords

• döner elemanlı rulman
• arıza teşhisi
• titreşim ölçümü
• titreşim sinyalleri
• rolling-element bearing
• fault diagnosis
• vibration measurement
• vibration signals