Essays about: "Rotor Dynamics"
Showing result 1 - 5 of 48 essays containing the words Rotor Dynamics.
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1. Propulsion modelling of a generic submarine propeller
University essay from KTH/Skolan för teknikvetenskap (SCI)Abstract : Self propulsion modelling is important in order to accurately simulate ships and submarinesusing Computational Fluid Dynamics (CFD). However, fully resolved simulations of hull andpropeller geometries are computationally heavy and time consuming. As such there is a greatinterest in lower order CFD models of propellers. READ MORE
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2. Multibody modelling of the vibrations in an aircraft engine
University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanikAbstract : During the assembly of aircraft engines, some clearance is left in the rolling bearings mainly to reduce friction. However this clearance might allow the rolling element to vibrate during flight. Indeed, unwanted vibrations called non-synchronous vibrations (NSV) appear on the data recorded by the sensors on some development engines. READ MORE
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3. Polarizability and Orientation Dynamics of Small Proteins
University essay from Uppsala universitet/MaterialteoriAbstract : Proteins often carry an intrinsic electric dipole moment, which can interact with external electric fields and cause protein motion. Previous research has found that the orientation of small proteins in gas phase can be controlled in a static electric field. READ MORE
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4. Rotor Dynamic Modeling of Hydropower Rotors by 3D-Finite Element Analysis
University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikAbstract : By using the rotor dynamic capabilities of Simcenter Nastran Rotordynamics, an eigenvalue analysis of 3D-finite element models of the Jeffcott rotor and the overhung rotor were conducted and compared to the results with beam-based, lumped parameter models. The first two critical speeds of the Jeffcott rotor were estimated with variations of 3. READ MORE
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5. The role of location of low inertia in power systems
University essay from Uppsala universitet/Institutionen för elektroteknikAbstract : The plans to reduce the energy-related greenhouse gas emissions stimulate the deployment of electronically interfaced renewable resources. The increased penetration of such intermittent sources together with phasing conventional power plants out and the installation of High Voltage Direct Current (HVDC) links for long-distance more efficient transmission, reduces the stored inertia in any electrical grid. READ MORE