Sökning: "eccentricity"
Visar resultat 6 - 10 av 37 avhandlingar innehållade ordet eccentricity.
6. Hydroelectric Generators: Development and Magnetic Pull Forces caused by Rotor Eccentricity
Sammanfattning : .... LÄS MER
7. Contributions to the electromechanics of unbalanced magnetic pull in a synchronous hydropower generator
Sammanfattning : Misalignment between the rotor geometrical axis and the geometrical stator axis in a hydropower generator is usually present at standstill and when the machine is under operation. Now, rotor-stator eccentricity in a rotating electrical machine is a harbinger to abnormal operating conditions of the machine. LÄS MER
8. Dynamic Modeling of Hydropower Generators
Sammanfattning : Modeling the dynamics of hydropower generators has been the aim pursued by many studies, as providing a reliable model would lead to more cost-effective designs. Hydropower generators comprise many parts, tilting-pad bearings, shaft, rotor rim, and stator among them, that contribute to the system's nonlinearities. LÄS MER
9. An experimental generator test setup for hydropower research and model verification
Sammanfattning : This licentiate thesis describes the design and construction of a synchronous generator test setup. Some initial measurements are also presented. A twelve pole synchronous generator has been built from a synchronous motor. LÄS MER
10. Propagation of weak shock waves in an elliptical cavity
Sammanfattning : The propagation of weak shock waves in a planar elliptical cavity is studied theoretically and experimentally. The results are of interest in the design of an elliptical high-speed water jet generator operating in a transient fashion with electrically generated shocks in the acoustic regime. LÄS MER