Detection of Gear fault using vibration analysis

Document Type : Primary Research paper


Department of Mechanical Engineering, Nehru Institute of Technology


The new generation of condition
monitoring and diagnostics systems differs by the
detailed solution of diagnostic problems that
allows making a step from machine vibration
state monitoring to the monitoring of the machine
technical condition. Most rotating machine
defects can be detected by such a system much
before dangerous situations occur. It allows the
efficient use of stationary on-line continuous
monitoring systems for condition monitoring and
diagnostics as well. A real-time system for
condition monitoring of Gearbox can reduce
expenses of maintenance of it used in industry. It
is based on vibration signature analysis concept
using the vibration information as acquired from
the various bearing locations of a Gearbox. The
aim of vibration monitoring is the detection of
changes in the vibration condition of the object
under investigation during its operation. The
cause of such changes is mainly the appearance
of a defect. The vibration measurements can be
conducted without any change in the operation
mode of the object The objective of this paper is
to detect the fault in Gearbox by the
interpretation of vibration data and spectrums.
The spectrums shows the fault in Gearbox when
Gearbox is operated at different Gears on full