TY - GEN
T1 - Structural Stator Spacers
T2 - The key to silent electrical machines
AU - Rasmussen, Peter Omand
AU - Andreasen, Jens H.
AU - Pijanowski, J. M.
PY - 2001
Y1 - 2001
N2 - This paper presents a powerful new design aspect to reduce acoustic noise and vibration of electro-magnetic origin for electrical machines, by introducing improved slot wedges referred to as "Structural Stator Spacers". These spacers, by using a very stiff dielectric and non magnetic material, a modified shape and small modifications to the stator laminations not only secure the windings and reduce windage losses but also make it possible to increase the stiffness of the stator structure significantly thereby reducing the generation of audible noise. This new method does not incur the significant drawbacks usually associated with other noise reduction methods or interdict other noise control methods. Design models and practical prototypes are detailed which are used to verify the effectiveness of the spacers.
AB - This paper presents a powerful new design aspect to reduce acoustic noise and vibration of electro-magnetic origin for electrical machines, by introducing improved slot wedges referred to as "Structural Stator Spacers". These spacers, by using a very stiff dielectric and non magnetic material, a modified shape and small modifications to the stator laminations not only secure the windings and reduce windage losses but also make it possible to increase the stiffness of the stator structure significantly thereby reducing the generation of audible noise. This new method does not incur the significant drawbacks usually associated with other noise reduction methods or interdict other noise control methods. Design models and practical prototypes are detailed which are used to verify the effectiveness of the spacers.
U2 - 10.1109/IAS.2001.955389
DO - 10.1109/IAS.2001.955389
M3 - Conference article in Journal
SN - 0197-2618
VL - 1-4
SP - 33
EP - 39
JO - Industry Applications Conference
JF - Industry Applications Conference
ER -