Balancing method and product

Details Balancing method and product Balancing method and product

1989-06-30

1993-05-25

Cosimano, Edward R.

Boots, shoes, and leggings

73462, 364503, 364578, G01M 138

Patent

active

052145859

ABSTRACT:
A low-speed balancing method is provided for balancing a rotor to introduce balance corrections for reducing unbalance due to operation of the rotor at or near critical speeds without actually balancing the rotor at such critical speeds. The method is applicable for balancing a rotor in three, four or more correction planes by utilizing combinations of generic unbalance distributions of the rotor and predetermined mode shapes of the rotor at critical speeds. A simple method is presented which allows an operator using a low-speed balancing machine to determine measured corrections applicable to two planes of the rotor and then the operator effects at least a third correction to the rotor which is proportional to the measured corrections and the unbalance/mode shape combination. The operator then repeats the low-speed balancing sequence to determine final corrections at the two planes, which are then made for finally balancing the rotor.

REFERENCES:
patent: 2966801 (1961-01-01), Nemec et al.
patent: 3071972 (1963-01-01), Koenig
patent: 3122020 (1964-02-01), Hack
patent: 3916495 (1975-11-01), Klassen et al.
patent: 4098127 (1978-07-01), Shiga et al.
patent: 4132090 (1979-01-01), McDermott
patent: 4162634 (1979-07-01), Hofmann
patent: 4170896 (1979-10-01), Korkosz
patent: 4238960 (1980-12-01), Curtis et al.
patent: 4250555 (1981-02-01), Mitchell et al.
patent: 4357832 (1982-11-01), Blackburn et al.
patent: 4485678 (1984-12-01), Fanuele
patent: 4489606 (1984-12-01), Shiohata et al.
patent: 4535411 (1985-08-01), Blackburn et al.
patent: 4543463 (1985-09-01), Scuricini
patent: 4545021 (1985-10-01), Suzuki et al.
patent: 4626147 (1986-12-01), Nystuen et al.
ASME, Rotating Machinery Dynamics, Volume One, 1987, pp. 175-181, paper entitled "Supercritical Shafting for an Advanced Turboprop Engine" by P. D. Hylton et al.
Standard Handbook for Mechanical Engineers, T. Baumeister, 1967, pp. 5-96 through 5-101.
Balancing Technology, H. Schneider, 1977, pp. cover, III, V, 26-37, 42-45, 58-77, and 120-121.
GE Shaft A, General Electric Company, one-page excerpt, "[Note] 7, Dynamic Balance of Shaft Assembly," Internal, unpublished.
GE Shaft B, General Electric Company, three-page excerpt, "Balance Procedure for Shaft," Internal, unpublished.
GE Shaft C, General Electric Company, one-page excerpt, "Balance Procedure," Internal, unpublished.
"Engine Vibration Rotor Balancing," J. K. Sevcik, 1957, Internal General Electric Company document DF57AGT654, pp. cover, 1-38, unpublished.

Affiliated with

Also associated with

Rating

Balancing method and product does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Balancing method and product, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Balancing method and product will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-902649