@article{(Open Science Index):https://publications.waset.org/pdf/3123,
	  title     = {Causes of Rotor Distortions and Applicable Common Straightening Methods for Turbine Rotors and Shafts},
	  author    = {Esmaeil Poursaeidi and  Mostafa Kamalzadeh Yazdi},
	  country	= {},
	  institution	= {},
	  abstract     = {Different problems may causes distortion of the rotor,
and hence vibration, which is the most severe damage of the turbine
rotors. In many years different techniques have been developed for
the straightening of bent rotors. The method for straightening can be
selected according to initial information from preliminary inspections
and tests such as nondestructive tests, chemical analysis, run out tests
and also a knowledge of the shaft material. This article covers the
various causes of excessive bends and then some applicable common
straightening methods are reviewed. Finally, hot spotting is opted for
a particular bent rotor. A 325 MW steam turbine rotor is modeled and
finite element analyses are arranged to investigate this straightening
process. Results of experimental data show that performing the exact
hot spot straightening process reduced the bending of the rotor
significantly.},
	    journal   = {International Journal of Mechanical and Mechatronics Engineering},
	  volume    = {5},
	  number    = {7},
	  year      = {2011},
	  pages     = {1260 - 1265},
	  ee        = {https://publications.waset.org/pdf/3123},
	  url   	= {https://publications.waset.org/vol/55},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 55, 2011},
	}