Abstract
During transient torsional vibration of rotating shafts heat is generated due to material damping, which results in substantial temperatures. The problem of a cylinder of infinite length heated by way of a transient torsional vibration of variable amplitude is investigated and an expression of the maximum surface temperature is obtained. Diagrams with the appropriate dimensionless parameters are presented together with a numerical example. It is shown that substantial temperatures can be developed as a result of this mechanism of heat generation. This quantities the belief that this phenomenon was the reason for a major generator failure in a power system.
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