The closing automatic rotor-balancing device of the multistage centrifugal compressor with regulator of pressure difference acts as the end seal and the hydrostatic bearing with self-regulating gap and gas leakages. The main advantages of this design are absence of end seals and bearings and leakage of working gas. Amplitude frequency characteristic of rotor axial oscillations and transient processes and dynamic stability of the system are represented as example for compressor K 180-131-1. At this stage dynamic stability of the system is implemented by numerical verification by Hurwitz criterion. In perspective it is necessary o define conditions and boundaries for dynamic stability analytically and investigate nonlinear mathematical model without inearization on the basis of Runge-Kutta and Bulirsch-Stoer methods.
展开▼
