Soter Slomski Phones & Addresses
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88 West St APT 8, Vernon Rockvl, CT 06066 (860) 872-8843
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88 West St, Vernon Rockville, CT 06066
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Vernon, CT
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Mansfield Center, CT
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Vernon Rockvl, CT
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88 West St APT 8, Vernon Rockvl, CT 06066
Publications
Us Patents
Method Of Balancing A Bladed Rotor
View pageUS Patent:
55378617, Jul 23, 1996
Filed:
Mar 20, 1995
Appl. No.:
8/407358
Inventors:
Leon H. Seitelman - Glastonbury CT
Johan van Achterberg - South Windsor CT
Soter P. Slomski - Vernon CT
Johan van Achterberg - South Windsor CT
Soter P. Slomski - Vernon CT
Assignee:
United Technologies Corporation - East Hartford CT
International Classification:
G01M 100
US Classification:
73 66
Abstract:
A method disclosed]for balancing the fan rotor (10) of a turbine engine having a hub (12) with blades (16) extending radially therefrom includes the steps of determining (30) a penalty associated with each possible unique blade arrangement in which a limited number of blades is relocated from their initially assigned locations on the hub to new target locations. A subset of these arrangements is selected (34), the subset members being the arrangements having the lowest penalties. For each member of the subset, the penalty determination (36) is made for each possible unique blade arrangement in which a limited number of blades is relocated from their initial locations in each subset member to new target locations. If these latter penalty determinations identify an arrangement having a penalty less than that of any arrangement in the subset, the subset selection (34) and penalty determination steps (36) are repeated until no further reduction in penalty is observed. Once a blade arrangement having the smallest penalty is identified, the imbalance associated with that arrangement is compared (42) to a predetermined imbalance limit.
Acoustically Improved Gas Turbine Blade Array
View pageUS Patent:
59665254, Oct 12, 1999
Filed:
Apr 9, 1997
Appl. No.:
8/835282
Inventors:
Robert J. Manzi - Rocky Hill CT
Douglas C. Mathews - Marlborough CT
Soter P. Slomski - Vernon CT
Johan van Achterberg - South Windsor CT
Douglas C. Mathews - Marlborough CT
Soter P. Slomski - Vernon CT
Johan van Achterberg - South Windsor CT
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
F01D 512
B64C 1118
G06F 1750
B64C 1118
G06F 1750
US Classification:
39550029
Abstract:
The blades (38) of a gas turbine engine fan rotor (32) are uniquely distributed in the rotor hub (48) so that combination tone noise attributable to one or more physical nonuniformities in the blades is mitigated. The invention recognizes that the frequency spectrum of the combination tone noise includes both decay prone harmonics and decay resistant harmonics and that allocation of acoustic energy into the decay prone harmonics and out of the decay resistant harmonics is effective for mitigating combination tone noise. In particular, the blades are distributed so that the spatial or circumferential spectrum of the physical nonuniformity is dominated by circumferential harmonics whose order is no greater than the order of the highest decay prone harmonic of the combination tone noise spectrum.