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 acting on the circular collector ring are given. Then electrical magnetic forces sustained by the end collector ring are deduced in ab analytical expression. According to the Love curved beam theories, the general nonlinear magnetoelasticity coupling vibration equations of the end circular collector ring of a turbogenerator stator are derived. The vibration characteristics of the end circular collector ring of the turbogenerator are analyzed. The method used and calculation results given in the paper provide a theoretical basis for the design and vibration analysis of the end collector rings of large turbogenerator stators.