Vibration analysis of the magnetism and solid of turbo-generator stator end collector ring

Using Maxwell equations, Poisson equations of magnetic vector potential are solved by separation of variables. Distribution functions of magnetic density acts on the circular collector ring are given. Then electrical magnetic forces sustained by end collector ring are deduced in analytical expression. According to the Love curved beam theories, the general nonlinear magneto elasticity coupling vibration equations of the end circular collector ring of turbo-generator's stator are derived. The vibration characteristics of the end circular collector ring of turbo-generator are analyzed. The method used and calculation results given in the paper provide theoretical basis for design and vibration analysis of end collector ring of large turbo-generator's stator.