Search Results - "Holopainen, Timo P."

Space-Vector Models for Torsional Vibration of Cage Induction Motors by Arkkio, Antero, Holopainen, Timo P.

“…Electromagnetic response of induction motors to torsional vibration is studied using space-vector and finite-element (FE) models. Comparison of the results…”
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Additional Losses of Electrical Machines Under Torsional Vibration by Arkkio, Antero, Cederstrom, Samuli, Awan, Hafiz Asad Ali, Saarakkala, Seppo E., Holopainen, Timo P.

“…Electric drive trains have a torsional rigid-body vibration mode at a small, nonzero frequency. If an excitation occurs close to this frequency, the vibration…”
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How to Ensure Low Vibration of 2-Pole Motors on Flexible Foundation: Copyright Material IEEE, Paper No. PCIC-2018-28 by Holopainen, Timo P., Roivainen, Janne, Aarnivuo, Samu

“…Motor vibrations are tested as a part of Factory Acceptance Testing (FAT), normally on a massive foundation. In 2-pole motors there are two main sources of…”
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Electromechanical interaction in rotordynamics of cage induction motors by Holopainen, Timo P., Tenhunen, Asmo, Arkkio, Antero

“…Eccentric rotor motion induces an unbalanced magnetic pull between the rotor and stator of cage induction motors. Recently, a linear parametric model of this…”
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Distributed model for electromechanical interaction in rotordynamics of cage rotor electrical machines by Laiho, Antti, Holopainen, Timo P., Klinge, Paul, Arkkio, Antero

“…In this work the effects of the electromechanical interaction on rotordynamics and vibration characteristics of cage rotor electrical machines were considered…”
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Identification of Magnetic Properties for Cutting Edge of Electrical Steel Sheets by Holopainen, Timo P., Rasilo, Paavo, Arkkio, Antero

“…Electrical steel sheets of motors and generators are usually shaped to the final form by punching. The punching and other cutting processes generate large…”
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Effects of saturation on the forces in induction motors with whirling cage rotor by Tenhunen, A., Holopainen, T.P., Arkkio, A.

“…The effects of magnetic saturation on the radial magnetic forces in induction machines when the rotor is performing a cylindrical circular whirling motion are…”
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Space-vector models for torsional vibration of cage induction motors by Arkkio, Antero, Holopainen, Timo P.

“…Electromagnetic response of induction motors to torsional vibration is studied using space-vector and finite element (FE) models. Comparison of the results…”
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Reducing the Losses of Electrical Machines Under Torsional Vibration by Arkkio, Antero, Molsa, Eemeli, Holopainen, Timo P.

“…Electric drivetrains have an almost rigid-body torsional vibration mode at a low natural frequency. If a torsional excitation occurs close to this frequency,…”
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Two-axis models for torsional vibration of synchronous machines by Arkkio, Antero, Holopainen, Timo P.

“…Simple models of synchronous machines are studied for torsional vibration analysis of electrically driven drive trains. A non-linear system model of the…”
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Identification of magnetic properties for cutting edge of electrical steel sheets by Holopainen, Timo P., Rasilo, Paavo, Arkkio, Antero

“…Electrical steel sheets of motors and generators are usually shaped to the final form by punching. The punching and other cutting processes generate large…”
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Ensuring the Low Vibration of Two-Pole Motors on Flexible Foundations: A Manufacturer-System Integrator Collaboration by Holopainen, Timo P., Roivainen, Janne, Aarnivuo, Samu

“…Motor vibrations are tested as a part of factory acceptance testing (FAT), normally on a massive foundation. In two-pole motors, there are two main sources of…”
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Analysis of iron losses on the cutting edges of induction motor core laminations by Rasilo, Paavo, Aydin, Ugur, Holopainen, Timo P., Arkkio, Antero

“…A 37 kW induction motor is modeled numerically taking into account the deterioration of the magnetic material properties at the cut edges of the core…”
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