Comparative Study of Gearbox Fault Diagnosis by Vibration Measurements

Abstract

Abstract.Vibration analysis has been demonstrated to be one of the best tools to detect faults in a gearbox by providing abundant information about the operating condition of a gearbox. However, a gearbox generates complex vibration signals, which makes it difficult to diagnose when a fault occurs. There are several fault diagnosis methods that can be utilized to analyze the underlying signals. The time-frequency method has been used and showed some promising results. On the other hand, it also has its drawback when it is applied to a complex mechanical system such as gearboxes. This paper thus attempts to examine the effectiveness of several diagnosis methods to detect faults in a gearbox from vibration measurements. The results show that the cepstrum method can provide a more accurate indication of a faulty gearbox compared to other diagnosis methods.

A review of ground‐based radar as a noncontact sensor for structural health monitoring of in‐field wind turbines blades

“…A study reviewing these methods concluded that vibration‐based methods provide the best practices for wind turbines SHM. Consequently, the use of structural vibration of gearboxes, blades, and tower positioning provide a simple basis for measuring the unbalanced parameters for potential and pre‐existing fatigue damage. A critical comparative analysis of these contact and noncontact sensors is explored in Table with respect to their determination of in‐field unbalanced vibrational parameters (radial displacement and modal frequency) …”

“…In other studies, other novel indirect contact approaches to determine unbalanced parameters using prognostic methods are indicated. They include gearbox monitoring using vibration analysis and time‐series prediction, bearings acoustic emission, use of signature distances, and supervisory control and data acquisition (SCADA) data analysis.…”

Vibra-Sensors PXI-Based Test Complex Controlled by Labview

“…Thus, the application of this algorithm allows you to change the frequency and acceleration values smoothly within a wide range and, thus, does not exceed the permissible limits on acceleration [12,13]. …”

Mobile Complex For Rapid Diagnosis of the Technological System Elements

“…The development of the metal-working equipment designs led to the further development of information and measurement technology [11][12][13][14] for vibration diagnostics of the technological system "machine-tool-tool-instrument-piece".…”

“…There are known the designs of the mobile diagnostic complexes of foreign and domestic origin as well as their application techniques [11][12][13][14]. These complexes show good results, but they are complicated to operate (instruction and special skills are required) that determined the necessity to develop an up-to-date, compact, reliable and easy-to-use diagnostic system for vibration diagnostics.…”