Considerations In Hot And Cold Alignment And Couplings
Hot and cold alignment techniques are addressed, with graphical plotting of reverse dial indicator alignment maps. An alignment program with a two sets of data for cross checking and suggested proper tooling and procedures are offered. One case history on stream turbine to barrel pump is presented where the turbine shaft was failed by reverse bending fatigue. The coupling portion of this study deals with the coupling’s importance in the rotor effects and defects. Certain balance and assembly solutions and standards are suggested along with the proper fitting of a coupling. A procedure for re-positioning certain couplings to match the coupling’s and rotor’s residual imbalances. Two case histories are included.
Jackson, Charles (1990). Considerations In Hot And Cold Alignment And Couplings. Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University. Available electronically from