eTIME-2016 : 5th and 6th August 2016 Department of Mechanical Engineering
St Joseph Engineering College
installation, etc. The faults related to bearing do not cause immediate breakdown, they
progress with the time until they result in a critical failure of the machine. With the help
of advanced diagnosis methods, it is possible to detect these faults in their early phase,
before they result in catastrophic failure of the machine. Condition monitoring is one such
technique which plays a vital role in providing higher availability of plant machinery by
detecting problems before they result in a major breakdown. It is the process of
monitoring a parameter of condition in machinery, such that a significant change is
indicative of a developing failure. Analysis of the parameter for ongoing deterioration
will help in taking suitable measures to avoid further deterioration. Vibration analysis is
the most commonly used condition monitoring technique. Comparison of the
vibration spectra of new equipment with the standards will provide the information
required to make a decision when maintenance intervention is required. This work
involves the application of condition monitoring technique (Vibration analysis) on the
antifriction bearings of a critical machine in the CNC manufacturing unit located in
Keywords Antifriction bearings, condition monitoring, vibration analysis, catastrophic,
Comparative Analysis of Helical Steel Springs with Composite Springs using Finite
Anil Antony Sequeira1, Ram Kishan Singh2, Ganesh K Shetti3
1School of Engineering & IT, Manipal University Dubai Campus, Dubai, 345050, U.A.E.
2School of Engineering & IT, Manipal University Dubai Campus, Dubai, 345050, U.A.E.
3School of Engineering & IT, Manipal University Dubai Campus, Dubai, 345050, U.A.E.
Abstract In automobile sector due to the demanding need of rapid innovation and tough
competition, the old products are reengineered by new product with composite materials.
Regularly new innovations are carried out in suspension area of vehicles. Fiber
Reinforced Material [FRP] components are the main interest of automobile industry for
replacing the steel components due to “high strength to low weight” ratio. To reduce the
weight and fuel consumption to some extent, automobile industries are using the Glass
Fiber Reinforced Plastic [GFRP] open coil springs in suspension system of vehicle at the
place of steel open coil springs. In this research, the properties of composite and steel
helical spring are compared and the deciding factor is the stiffness to weight ratio. Spring
geometry is modeled in CREO Software on other hand Finite Element method is used to
analyze under different loading condition. Finally, steel spring has been replaced by two
different composite helical spring including Carbon and Kevlar.
Keywords Helical spring, Composite spring, ANSYS work bench, Carbon and Kevlar