Numerical Computation Method for Rotor-Foundation (or Casing) Dynamics : Based on the Myklestad-Prohl Transfer Matrix Method

Abstract

Vibrations of the rotating shaft system have been studied for centuries. In particular, recent researches have dramatically progressed thanks to the development of computers and measuring technology. From around 1970, we started to develop a reliable vibration analysis system for rotating shaft systems, and have presently succeeded in the development of a total system capable of analyzing vibrations of the shafting as a compound system including both rotor foundation and casing model. The computation method of this system is based on the Myklestad-Prohl transfer matrix method, and permits a multi rotor and multi foundation system.