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TITLE : VIBRATION ANALYSIS ON A PROPELLER SHAFT  
ABSTRACT :

A simple, practical and sufficiently accurate method for finding the natural frequencies of a propeller shaft assembly is described. The need for such methods is felt at the early design stages. when sufficient data about the system are not available and the need to restrict the cost of analysis is important. Forward and reverse whirl speeds are calculated. A propeller shaft or Cardan shaft is a mechanical component for transmitting torque and rotation, Crack is a common structural defect which may lead to improper functioning which may destroy the structure. Using vibration analysis, the state of a machine can be constantly monitored and detailed analysis may be made concerning the health of the machine and any faults which may arise or have already arisen. It is necessary to identify the presence of crack in a propeller shaft and its response with respect to location and depth of the crack at various operating angles. The modeling of propeller shaft, universal joint and the experimental setup is done using Pro/ENGINEER Wildfire Modal and Harmonic analysis on propeller shaft with crack is done using Finite Element Analysis, with help of ANSYS. The parameter like deflection, stresses, and natural frequencies under subjected loads using FEA will be studied. The natural frequency, Harmonic Analysis of Propeller Shaft with system at operating angle α = 0 °, 10o and 15o are studied.

 
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