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Hydraulic turbines are more often than before running at off-design conditions. The flow conditions outside the best efficiency… Expand An analytical model has been developed for analyzing the magnetic radial forces of permanent magnet (PM) machines. The air-gap… Expand The nonlinear normal modes of a horizontally supported Jeffcott rotor are investigated. In contrast with a vertically supported… Expand The aim of this paper is to minimize the structural mass of large direct-drive wind generators using a ring-shaped buoyant rotor… Expand Balancing technology is still relatively new. Thirty years ago it was primarily still part of the skilled trade and was often… Expand Abstract In this paper, a cracked Jeffcott rotor is analyzed as it passes through its critical speed and subharmonic resonances… Expand The problem of rotor-fuselage aerodynamic interaction has to be considered in industry applications from various aspects. First… Expand AbstractNonlinear rotors are often considered as potential sources of chaotic vibrations. The aim of the present paper is that of… Expand