Investigation on Crack Modulation of Simply Supported Shaft for Determination of Critical Speed by using Finite Element Method |
Author(s): |
Vikas Yadav , Sri Satya Sai College of Engineering, RKDF University, Bhopal (Madhya Pradesh); Amitesh Paul, RKDF University, Bhopal (Madhya Pradesh); Vishal Kumar Jaiswal, Sri Satya Sai College of Engineering, RKDF University, Bhopal (Madhya Pradesh); Akanksha Yadav, Sri Satya Sai College of Engineering, RKDF University, Bhopal (Madhya Pradesh) |
Keywords: |
Critical Speed, Campbell Diagram, Rotor Dynamics |
Abstract |
The effective uses of a shaft are limited at its maximum operational junction frequency. The study was conducted by using the Finite element method. The shafts are used with flow of with rotation such as compresses, turbine and industrial applications. The major study was done on shaft by using different materials with different shaft profile of Solid with two and Three Cracks. A natural frequency was analysed and critical speed was predicted by using Campbell diagram and analysis was also performed for validation. The results show that solid shaft and material like Gray cast iron of shaft decreases the critical speed with increase in a RPM simultaneously. The natural frequency of shaft is compared by using two types of materials and is predicted that at solid shaft with two and three cracks of shaft profile an alloy 6061 gives better frequencies in different modes. Alloy 6061 material shaft are made by powder metrology and gray cast iron material shaft are made by casting and gray cast iron is made by remelting pig iron. It is highly resistant to deformation and provides a rigid frame. So gray cast iron material shaft is better compare to alloy 6061 material shaft. |
Other Details |
Paper ID: IJSRDV6I50197 Published in: Volume : 6, Issue : 5 Publication Date: 01/08/2018 Page(s): 306-311 |
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