Abstract:
The field of health monitoring of structures can play a very important
role in monitoring and evaluating the integrity, safety and condition of the
structures including the automotive components. In this work, Finite Element
Analysis (FEA) is used as a vibration analysis technique to approximate dynamic
characteristics of an exhaust system. A model of a used exhaust component is
analyzed to detect any damage or cracks that may be induced in the structure by
analyzing the changes in natural frequency and the displacement or deformation
using finite element analysis. Structural damaged has resulted in a variation of
natural frequency, damping ratio and mode shapes has modified the dynamic behavior of the system. A finite element model has been developed to simulate
different level of damage in the exhaust system. The significant changes in
displacement or deformation between intact and damaged exhaust structure
provides a good potential as a monitoring tool in order to identify or assess the
damage induced in the exhaust pipe by converting the displacement into frequency spectrum.
